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Meiselman Science Final

Here are all the vocab from 7th grade science. If you think something is missing please tell me.

Terms

undefined, object
copy deck
zygote
fertilized egg
cytokinesis
two genetically identical daughter cells are formed
lysomsome
are the clean up the crew in the cell they break down dead or broken organelles
Pressure
the force something exerts over a given area
DNA
also known as Deoxyribonucleic acid it is the genetic matter that passes traits down generations
urine
the watery fluid in which urea, excess water and some other waste materials are eliminated in
seta
the long filament that has a sporangia attached to the end
fruiting bodies
the structure in which spores are produced
nucleolus
a structure within the nucleus where ribosomes are made
telophase
nuclear membrane reforms, chromatids uncoil back into chromatin, cell membrane pinches back into two cells organelles divide into each cell
genes
the factors that control traits
hypothesis
a possible explanation for a set of observations or an answer to a scientific question; must be testable; if then statement
nonvascular plants
low growing plants that do not contain vascular tissue
trachea
windpipe
cell cycle
the regular sequence of growth and division that cells undergo
pancreas
a triangular organ that produces enzymes that break down starches, proteins and fats
interphase
during this phase the cell grows to its mature size, makes a copy of its DNA and prepares to go through division
Vesicles
the packages that the golgi bodies make
heterotroph
an organism that cannot make its own food
How do fungi feed?
first it grows hyphae into the food source, then digestive chemicals break down the food into simpilar substances that can be absorbed by the hyphae
compact bone
a very strong and compact part of the bone
resolution
the ability to clearly distinguish the parts of an object
asexual reproduction
a reproductive process that only requires one parent and the offspring are gentically identical to the parent
Plant Characteristics
they are all multicellular, autotrophs that are also eukaryotes
sickle cell
when an abnormall form of hemoglobin is produced and causes rbc's to be sickle shaped
data
the facts, figures, and other evidence gathered through observation
mechanical digestion
digestion where movement occurs (chewing)
metaphase
chromosomes line up in the center of the cell, centrioles are on opposite sides, spindle fibers attach to chromosomes
nucleus
the brain of the cell
sphygmomanometer
a machine that measures blood pressure
What are the three types of muscle tissue?
skeletal muscle, smooth muscle, and cardiac muscle
hyphae
branching threadlike tubes that make up the bodys of multicellular fungi
spongy bone
a part of the bone which looks like a sponge but is actually very strong
atherosclerosis
a condition in which the artery wall thickens as a result of the build up of fatty materials
absolute dating
allows scientists to determine the actual age of fossils
What chemicals are required for photosynthesis?
H2O, CO2 and Sunlight
Nucleic Acids
very large molecules that contain the instructions that cells need to carry out all functions of life
veins
blood vessels that carrie oxygen poor blood towards the heart, one exception pulminary vein
intraspecific competition
competition within a species
gallbladder
the organ that stores bile
quantitative observation
using numbers to describe an object
hydrochloric acid
a very strong acid found in the stomach (HCL)
cell theory
all living things are composed of cells, cells are the basic unit of structure and function in living things, all cells are produced from other cells
sporophyte
the stage in the life cycle of the plant in which the plant produces spores
Scientific inquiry
a process used every day by people studying plants and animals also used by physicians and many others
auxin
a hormone that speeds up the rate which a plant's cells grow
dermis
the layer of the skin that contains blood vessels nerve tissues, oil glands, sweat glands etc.
How many types of angiosperms are there?
there are two types monocot and dicot
lymph
the fluid inside the lymphatic system
voluntary muscles
muscles that are under your conscience control
embryo
the young plant that develops from the zygote
prophase
centrioles move to opposite sides of cell, nuclear membrane breaks down, chromatin condenses to form chromosomes, spindle fibers form
stomata
small openings on the bottoms of leaves
osmosis
the diffusion of water molecules through a selectively permeable membrane
What are the four types of tissue found in the human body?
muscle tissue, nerve tissue, connective tissue, epithelial tissue
aminocentesis
a process where a long needle is put into the fluid around a developing baby to see if the baby will have any genetic disorders
blood pressure
the pressure that blood exerts over the walls of blood vessels
What major functions does the skin perform in the body?
cover the body, prevents loss of water, protects the body from injury and infection, regulates body temperature, eliminates waste, gathers information about the enviroment and produces vitamin D
lichen
consist of a fugus and either algae or autotrophic bacteria that live in a mutualistic relationship
cartilage
a connective tissue that is like bone but more flexible
vena cova
the body's largest vein
chemical digestion
when chemicals break down food molecules
interspecific competition
competion between different species
magnification
the ability to make things look largeer than they are
Scientific theory
a well tested concept that explains a wide range of observations
diaphragm
a large dome-shaped muscle that plays an important rule in breathing
transpiration
the process in which water evaporates from a plants leaves
marrow
a soft connective tissue found in bones that produces blood cells
filament
the thin stalk that holds up the anther
hypocotyl
forms the stem and the roots
Eukaryotes
cells who have a nucleus
What are the five major functions of your skeleton?
provides shape and support, enables movement, protects internal organs, produces blood cells and stores minerals
bronchitis
irritation of breathing passages in which the small passages become narrower than usual and may be clogged with mucus
lungs
the main organs of the respiratory system
lysogenic cycle
the cycle in which the virus is hidden
Analogous Structures
similar in function but not structure
meiosis
when the cells divide in order to form sex cells (eggs and sperm)
taxonomy
the scientific study of how living things are classified
gametophyte
the stage in the life cycle of the plant in which the plant produces sex cells or gametes
root cap
a hard tip that protects the root from injury
pores
tiny openings in the epidermis
hilum
the scar on a seed coat at the location where it was attached to the plants stalk during development
ureters
two narrow tubes in which urine flows through as it exits the kidneys
chromosome theory of inheritance
according to this theory genes are carried from parents to offspring on chromosomes
vocal cords
folds of connective tissue that produce your voice
force
a push or pull
valve
a flap of tissue that prevents blood from flowing backwards
What are the stages of urine formation?
first both wastes and needed materials are removed from the blood then the needed materials are filtered out and returned to the blood stream
lytic cycle
the cycle in which the virus is active
hemophilia
a genetic disorder in which a person's blood clot very slowly or not at all
peat
layers of dead moss in a bog that are compressed
purebred
an organism that always produces offspring with the same form of a trait as the parent
parasite
organisms or viruses that feed of a host
carbohydrate
an energy rich compund made of carbon and hydrogen
unicellular
having only one cell
cell wall
the rigid layer of non-living material the surronds the cells of plants and some other organisms
Can muscle cells extend?
no they can only contract and relax
types of roots
two types: fibrous and taproots
rennin
curdles milk
urea
a chemical that comes from the break down of proteins
protist
the "junk drawer kingdom" all protists are eukaryotes and live in mois surrondings
What are the six kingdoms?
Archaebacteria, Eubacteria, Protists, Fungi, Plants, Animals
alleles
the different forms of a gene
cilia
hairlike projections that move in a wavelike fashion in order to move the cell
Why do Biologists use classification?
to organize organisms into groups to make them easier to study andd identify
classification
the process of grouping things based on their similarities
Cellular Respiration
when cells withdraw energy from glucose
plasma
10% dissolved materials and 90% water
Lamarck
came up with the theory of use and disuse
coronary arteries
the first arteries that branch off the aorta
transfer RNA
carries amino acids and adds them to the growing protein
excretion
the removal process of the body's wastes
dominant allele
an allele whose trait always shows up in an organism if the allele is present
punctuated equilibria
the theory that evolution occurs in short periods of rapid change
bacteriophage
a virus that infects bacteria
sexual reproduction
involves two parents who combine there genetic infromation to form a new organism
manipulated variable
something that is changed to test your hypothesis
Stimulus
a change in an organisms surrondings which causes the organism to react
extinct
when no members of a species are still alive
protein
a large organic molecule made of carbon, hydrogen, oxygen, nitrogen and in some cases sulfur
homeostasis
the matinence of stable internal surrondings despite changes in the exterior enviroment
Amino Acids
the small molecules that make up proteins
carrier
a person who has one recessive allele for a trait and one dominant allele for the trait
genetics
the scientific study of heredity
periosteum
a membrane on the outside of a bone
reproduce
to produce offspring that is similar to the parents
anaphase
chromosomes split into chromatids
pulminary artery
the artery leading to the lungs from the heart
organism
anything living
recessive allele
the allele whose trait is masked when the dominant allele is present
blood transfusion
the transference of blood from one person to another
maltase
breaks down malt (barley)
compound microscope
a light microscope that has more than one lens
Antibiotic
a chemical that can kill bacteria without hurting an organisms own cells
stamens
male reproductive parts
septum
the wall of tissue in the middle of the heart which separates the two sides
anylase
breaks down starch
chyme
the white soupy substance that exits the stomach into the small intestine
genome
all the DNA in one cell of an organism
evolution
the gradual change ina species over time
codon
a three letter sequence that translates into a amino acid
dicot
an angiosperm with two cotyledons
gametes
sperm and egg cells
What are the most important groups of organic compounds in a living thing?
proteins, carohydrates,lipids and nucleic acids
bryophyte
simple plants ex: mosses, liverworts and hornworts
gradulism
the theory that evolution continues in a steady slow rate
spore
a tiny cell that is able to grow into a new organism
systemic circulation
circulation through the body cells
ventricle
the two lower chambers of the heart
flagellum
a long whiplike structure that helps bacteria move
style
the thin stalk that holds up the stigma
What are the two basic parts of a virus?
outer core that protects the virus and an inner core that contains genetic material
plumule
the shoot of an embryo
Endoplasmic Reticulum
a network of passageways that moves materials from one part of a cell to another; two types smooth and rough; rough is coated with ribosomes and smooth is not
What is the leaves purpose in a plant?
they capture the suns energy and carry out the food making process of photosynthesis
mucus
a thick slippery substance produced by the body
immovable joints
a joint where bones are connected in a way that allows little or no movement
traits
different physical characteristics
egg
female sex cell
fibrin
a chemical produced by platelets that make scabs over cuts
What is a stems function?
it carries substances from the roots to the leaves and hold the plant up, it also holds the leaves up for photosynthesis
tissue
groups of similar cells that perform specific functions within the organism
transcription
changing DNA into RNA
gliding joint
a joint that allows one bone to slide over the other
genetic disorders
an abnormal condition that a person inherits from a gene or chromosome
respiration
the process in which oxygen and glucose undergo a complex series of chemical reactions inside of cells
karyotype
a picture of the chromosomes in a cell
sex linked traits
traits controlled by sex linked genes
convex lens
a lens in which the center is thicker than the edges
pulminary circulation
circulation through the lungs
infectious diseases
illnesses that pass from one organism to another
tissue
a group of simlar cells that perform a specific function
fermentation
an energy releasing process that does not require oxygen
fossil record
the millions of fossils that scientists have collected
cell
the basic unit of structure and function in an organism
punnett square
a chart that shows all the possiblle combinations of a genetic cross
probability
the likeliness that a certain event will occur
bile
a substance that breaks up fat particles (emulsifyer)
saliva
the fluid released when your mouth waters from your salivary gland
hormone
a chemical that affects how the plant grows and develops
RNA
also known as Ribonucleic acid they play an important role in the production of proteins, they are also found in the cytoplasm of a cell around the nucleas
monocot
an angiosperm with only one cotyledon
pollination
when grains of pollen fall on the stigma
Molecule
the smallest unit of most compunds
Where does blood travel as it leaves the heart?
it travels through arteries
fossil
preserved remains of or traces of an organism that lived in the past
Centriole
tiny string like structures that split the cell during division
variable
something that causes a change in an experiment
Connective Tissue
provides support for your body and connects all of its parts
epidermis
the outer most layer of the skin
tap root
on thick main root a carrot is this type of root
germination
the early growth stage of the embryo
codominance
alleles are neither dominant or recessive as a result neither allele is masked
chromosome
a doubled rod of chromatin
capillaries
tiny blood vessels where materials are exchanged between the body cells and blood stream
petals
the leaflike structures which are used to attract insects
pleura
the moist membrane surronding the lungs
autotroph
an organism that makes its own food
organ
a structure that is composed of different tissues and is necessary for life
self-pollination
a plant pollinating itself
marrow
a connective tissue found inside of the bone and produces rbc's and wbc's
charles darwin
came up with the theory of evolution by natural selection and wrote " The origin of species"
arteries
blood vessels that carrie oxygen rich blood away from the heart, one exception pulminary artery
mitochondria
they produce the energy for non-plant cells
Emphysema
a serious disease that destroys lung tissue and causes difficulty to breath
use and disuse
the theory that if an organism uses something that it will stay over generations but if the organism doesn't use something that it will disapear over generations
The pathway of blood
left atrium, left ventricle, aorta, body cells, vena cova, right atrium, right ventricle, pulminary artery, blood vessels in lungs, pulminary vein and then back to the left atrium
sex cells
go through meiosis have 12 chromosomes
diffusion
is the process by which molecules tend to move from an area of higher concentration to an area of lower concentration
bacillus
the rod shped forms of bacteria
Enzyme
a type of protein that speeds up chemical reactions in a living thing
cell membrane
in cells with cell walls it is right inside of the cell wall but for cells without the cell wall it is the outermost structure of the cell it also controls what comes in and goes out of the cell
Nerve tissue
carries messages back and forth between your brain and every other part of the body
cuticle
waxy water proof layer that covers the leaves of most plants
ribosome
protein factories
Observation
using your senses to study something carefully
chromatid
an identical rod or strand of the chromosome
respiratory system
moves oxygen from the outside of the body to the inside also removes CO2 and H20 from the body
homeostasis
the matinence of stable internal conditions despite any schanges in the surrondings
virus
a small non-living particle that invades and then reproduces inside a living cell
nitrogen base pairs
their order specifies which protein will be produced
How do viruses multiply
viruses genetic material takes over the cell's functions then the virus tells the cell to produce the virus
species
a group of similar organisms that can mate and produce fertile offspring
auricles
the two ear-like flaps of either side of the heart
cytoplasm
the region between the cell membrane and the nucleus
What are the four components of blood
plasma, red blood cells, white blood cells, and platelets
gene therapy
the use of genetic engeneering to correct some genetic disorders
Do cells need water for most chemical reactions?
yes
What are the three important stimuli to which plants respond?
touch, light and gravity
budding
when small yeast cells grow from the body of a large parent cell and then break off
photosynthesis
the process by which the cell absorbs enrgy from the sun a turns it into food
chlorophyll
the green pigment found in the leaves of a plant
half-life
the time it takes for half the radioactive elements to decay
nephrons
tiny filtering factories found in the kidneys
seed parts
embryo, stored food, and a seed coat
lipid
contains more enegy then carbohydrates and can be stored as fats
pepsin
breaks down proteins in the stomach
follicles
where strands of hair grow in the dermis
replication
the process when the cell makes a copy of its DNA in its nucleus
transport by engulfing
when a cell changes its shape and engulf a food particle
cocci
the dot shped form of bacteria
preserved remains
remains of an organism that have been preserved
organelles
tiny structures within the cell which each carry out a specific function within the cell
Are viruses living?
no
vascular tissue
an internal system of tubes that transport substances within the plant, it also helps with support
Organic Compound
any compound that contains carbon
urinary bladder
the sac-like muscular organ that stores urine
nuclear membrane
a membrane on the outside of the nucleus that protects theh nucleus
tropism
a plant's growth response toward (positive) or away from (negative)
sucrose
breaks down complex sugars
active virus
a virus that is active as soon as it enters the cell
incomplete dominance
when 2 dominant alleles influence a phenotype
Golgi bodies
package and ship proteins
Scientific method
a step by step process scientists use to solve problems
skeletal muscle
muscles attached to your skeleton
radioactive elements
unstable elements that decay or break down into different elements
clone
an organism that is genetically identical to the organism from which it was produced
Science
a way of learning about the natural world; knowledge gained through the process of exploring the natural world
enzyme
a protein that speeds up chemical reactions in the body
kidney
major organs of the excretory system and they eliminate urea, excess water and some other waste materials
conjugation
when one bacterial cell transfers some of its genetic material to another cell
genus
the first part of an organisms scientific name (species is the second part)
Simple Plants
non-vascular, very short,produce by spores, don't need soil, wet enviroments
Homologous structures
similar in postition and structure but not necessarily in function
lymphatic system
aa network of veinlike vessels tht returns extra fluid from the blood stream that the cells did not use back to the blood stream
larynx
voice box
heredity
the passing of traits from parents to offspring
stomata
tiny openings or pores on the underside of a leaf
cardiac muscle
involuntary striated muscles that is only found in the heart
fungi
are eukaryotes, use spores to reproduce, and are heterotrophs that feed in a similar way
large intestine
the last part of the digestive system it absorbs water
heterozygous
an organism that has two different alleles for a trait
Atom
the smallest unit of an element
Natural Selection
the process by which individuals that are better adapted to the enviroment are more likely to survive and reproduce
adaption
a trait that helps an organism survive and reproduce
algae
the common name for a plant-like protist
woody stem
hard stems, maple trees have this type of stem
cross-polination
pollen being brought in from one plant to a completely different plant
seed
structures that contain young plants inside a protective covering
somatic cells
body cells go through mitosis have 24 chromosomes
sepals
protect the developing flower (bud)
pigments
chemicals that produce colors
cotyledons
the seed leave in which food is stored
vascular plants
plants that have vascular tissue
genotype
the genetic makeup or allele combinations of an organism
messenger RNA
copies the coded message from the DNA in the nucleus and carries the message into the cytoplasm
epiglottis
the flap of tissue that seals off your windpipe during swallowing
phloem
the vascular tissue that food moves through
hemoglobin
in the rbc's and picks up oxygen in the lungs and releases it in an appropriate place
anus
where waste exits the body
pistils
female reproductive parts
mutualism
a form of symbiosis in which both partners benefit
sperm
male sex cell
mold
a hollow spce in shape of an organism or part of an organism
lymph nodes
knobs of tissue in the lymphatic system that lymph passes through
What does the excretory system do?
the system that collects and disposes of the body's wastes
cancer
a disease where some body cells divide uncontrollably
peristalsis
the involuntary waves of muscle contractions that push food down the esophagus
peptidose
breaks down proteins in small intestine
How are fungi and Fungus-like protists alike?
they are heterotrophs, have cell walls and use spores to reproduce they are different in the way that all fungus-like protists are able to move in some point of there life
absorption
the process by which nutrient molecules pass through the wall of your digestive system into your blood stream
stalk
the tree trunk like part of a mushroom
multiple alleles
three or more forms of a gene that code for a single trait
smooth muscles
involuntary muscles found in organs like the esophagus and the stomach
marker molecules
determine what type of blood you have
pivot joint
a joint that allows one bone to rotate around the other
herbacious stems
soft stems, dandelions have this type of stem
Inorganic Compound
any compound that does not contain carbon
tendons
a strong connective tissue that connects muscle to bone
Fossil
traces of ancient organisms that have been preserved in rock or other substances
mosses
low growing bryophytes
responding variable
a factor that changes because of the manipulated variable
taxonomic key
a series of paired statements that describw the physical characteristics of different organisms
bolus
the ball like shape that exits your mouth and goes down your esophagus
What are the levels of organization in the human body?
cells, tissues, organs, organ system and organism
Who is more likely to have a sex realted trait?
a male because he only has one x chromosome
translating
taking messenger RNA and changing it into Amino Acids
phenotype
an organisms physical appearence
Muscle Tissue
makes your body move by contracting and relaxing
urethra
the small tube in which urine flows from the body
Sex linked genes
genes of the x and y chromosomes
osteoporosis
a condition in which the bodys bones become weak and break easily
bronchi
the passages that direct air into the lungs
micropyle
the small pore in the seed that allows water absorbtion
pulimanary vein
the vein leading away from the lungs back to the heart
hybridization
breeders cross two genetically different individuals
endospore
a small, rounded, thick walled cell that is in a bacterial cell and contains the bacteria's genetic information and some of its cytoplasm
mitosis
the stage in the cell cycle when the cell divides
stress
the reaction of your body and mind to threatening, challenging, or disturbing events
cast
a copy of the shape of the organism that made the mold
inbreeding
crossing two individuals that have identical or similar sets of alleles
control
the part of the experiment which remains the same and is used as a comparison
Spontaneous Generation
the mistaken idea that living things arise from non-living sources
selectively permeable
something that some substances can pass through while others cannot
pedigree
a chart that shows which members of a family have a specific trait
decomposers
break down large chemicals in dead organisms into smaller chemicals
stigma
tip of pistil
heart
a hollow muscular organ that pumps blood around the body
homozygous
an organism that has two identical alleles for a trait
What are the three main sources of evidence in evolution
1. homologous structures 2. similarities in DNA 3. Similarities in early development
embryo
the young plant that develops from the zygote
liver
a large organ where bile is produced and alchohol and medicines are broken down
symbiosis
a close relationship between two species in which one partner benefits
involuntary muscles
muscles that are not under your conscious control
Needs of living things
must satisfy there basic needs for energy, water, living space and stable internal conditions
pericardium
the moist membrane around the heart which helps it retain its shape
rhizoids
small root-like structures that anchor moss
Red blood cells
take up oxygen in the lungs and deliver it to another part of the body
bacteria
prokaryotic cells that can be positive or negative towards an organism
gastric juice
the juice found in the stomach and is made up of: rennin, pepsin and HCL
contractile vacuole
a structure that collects extra water and expells it from the cell
pigments
colored chemical compounds that absorb light
aorta
the largest artery in the body
bog
a very acidic wetland
Why do some traits show a wide variety of phenotypes?
because the trait is controlled by many genes
passive transport
the movement of substances through a cell membrane without using energy
angiosperm characteristics
they produce flowers and fruits
lactase
breaks down dairy products
fertilization
when the pollen tube is formed and sperm goes down the tude and fertilizes an egg
inference
an interpretation of an observation that is based on evidence or prior knowledge
genetic engineering
a technique for producing organism with a desired trait
hinge joint
a joint that allows backward and forward movement
pharynx
throat
pacemaker
a group of cells located in the right atrium which sends out electrical impulses to make the heart beat
fibrous root
branching roots like in a tree
mutation
any change that occurs in a gene or chromosome
protozoans
an animal like protist
Epitelial Tissue
covers the surfaces of your body inside and out
seed coat
the protective covering of a seed
binary fission
the process when a bacterial cell divides into two cells
What happens after air enters the alveoli?
O2 passes from the alveoli into the capillaries, and CO2 and H2O pass into the alveoli
Element
any substance that cannot be broken down into simpler substancess
multicellular
having more than one cell
selective breeding
the process of selecting a few organisms with desired traits to serve as the parents for the next generation
hybrids
organism that has both recessive and dominant alleles but only the dominant one is shown
Development
the process that occurs in the organisms life to produce a more complex organism
atrium
the two upper chambers of the heart
respiration equation
Glucose+Oxygen=Carbon dioxide+water+energy
active transport
the movement of substances through a cell membrane that requires energy
ligaments
connect bone to bone
ovary
the protective vessel where the seed develops
Complex Plants
flower/seeds/pollen, trees/shrubs, Vascular tissue, tall
qualitative observation
using words to describe an object (ex. color, shape)
vertabrae
the bones that make up your backbone
Variation
any difference between individuals of the same species
rectum
where waste material is compressed into its solid form
Characteristics of seedless vascular plants
have vascular tissue and use spores to reproduce
protein synthesis
the building of proteins
characteristics of seed plants
have vascular tissue and use seeds to reproduce
controlled experiment
when a scientist carries out two experiments that are identical except for one factor
xylem
the vascular tissue that water and nutrients move through
stomach
a muscular pouch in your abdomen that breaks down food into chyme
esophagus
a muscular tube that connects your mouth to your stomach
angiosperm
a plant that produces seeds that are inclosed in a fruit
organ system
a group of organs performing a major function
villi
the millions of finger like projections that line the small intestine and absorb nutrients
ovule
female gamete
lipase
breaks down fat (enzyme)
fruit
the structure that the ovary eventually changes into
Intermediate Plants
simple vascular tissue, mid size, use spores
epicotyl
forms the first leaves of the developing embryo
Steps of the scientific method
1.Problem 2.Research 3.Hypothesis 4.Design and carry out experiment 5.Collect data and take observations 6. Write a Conclusion
parts of an experiment
variable and control
What are the seven levels of classification?
Kingdom, Phylum, Class, Order, Family, Genus, Species
flower
the reproductive structure for an angiosperm
annual rings
rings found in the trunk of a tree caused by the xylems growing pattern, one is formed each year
host
a living thing that provides a source of energy for a virus or an organism
What is a roots function?
anchor a plant in the ground and absorb water and nutrients from the soil
White blood cells
the body's disease fighters
Petrified Fossils
fossils in which minerals gradually replce the remains
What do bacteria do in the living world?
the are involved in the food and fuel production as well as in enviromental recycling and cleanup
chromatin
thin strands of DNA that tell the nucleus what to do
What do plants need to survive on land?
be able to obtain water and other materials, retain water, transport materials inside themself, support their bodies,reproduce succesfully
radicle
the very tip of the root
Characteristics of living things
composed of cells, perform complex chemical activities (breathing etc.), Ability to move, ability to reproduce, respond to stimuli, use energy
hidden virus
a virus that stays hidden for a certain period of time upon entering the cell
Overproduction
species produce far more offspring then can possibly survive
alveoli
tiny sacs of lung tissue specialized for the movement of gases between air and blood
small intestine
the part of the digestive system where absorption and chemical digestion takes place
What are the five major functions of the digestive system?
First it breaks down food into molecules the body can use, Then the molecules are absorbed into the blood and carried throughout the body
anther
top part of stamen often yellow
What do fungi do in the living world?
they decompose, provide food, and cause and fight diseases
cystic fibrosis
a genetic disorder in which the body produces abnormally thick mucus in the lungs and intestines
Prokaryotes
cells who lack a nucleus
spirullum
the curly shped form of bacteria
What is the pathway of air as it travels inside the mouth or nose?
nose, pharynx, trachea and bronchi
sporangia
the tiny structures in which spores are produced
spores
a tiny cell that is able to grow into a new organism
pseudopods
an appendage attached to a protozoan that helps it move and obtain food
digestion
the process by which your body breaks down food into small nutrient molecules is called digestion
response
an action or change in behavior
hypertension
high blood pressure
relative dating
comparing two fossils to see which one is older
joint
a place where two bones come together
platelets
cell fragments that play an important roll in forming blood clots
calcified bone
the part of the bone that stores calcium
What are the three ways substances can move into or out of a cell?
diffusion, osmosis and active transport
ball and socket joint
the joint that allows the most movement
Compound
when two or more elements combine chemically
cardiovascular system
carries needed substances to cells and carries waste products away from cells
heart attack
when blood flow to part of the heart muscle is blocked
binomial nomenclature
the system of giving an organism a two part name (invented by Carolus Linnaeus)

Deck Info

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