C.P. Biology (Semester Exam Review)
Terms
undefined, object
copy deck
- ribosome
- an organelle in the cytoplasm of a living cell
- homeostasis
- metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes
- estuary
- the wide part of a river where it nears the sea
- population density
- number of individuals per unit area
- population
- the act of populating
- decomposer
- eats and breaks down dead matter
- trophic level
- each step in a food chain or food web
- cell wall
- a thin membrane around the cytoplasm of a cell
- water cycle
- the movement of water from place to place and from one form to another
- carrying capacity
- largest number of individuals of a population that a environment can support
- hypothesis
- a tentative theory about the natural world
- competition
- the act of competing as for profit or a prize
- organic compounds
- carbon-based molecules (most abundant compound besides water)
- prediction
- the act of predicting
- control
- the activity of managing or exerting control over something
- primary productivity
- the rate at which organic matter is created by producers
- climate
- the weather in some location averaged over some long period of time
- ecosystem
- a system formed by the interaction of a community of organisms with their physical environment
- cell
- the basic structural and functional unit of all organisms
- carbon cycle
- the organic circulation of carbon from the atmosphere into organisms and back again
- ions
- charged particles that form during chemical changes when one or more valence electrons transfer from one atom to another
- cell membrane
- a thin membrane around the cytoplasm of a cell
- community
- a group of interdependent organisms inhabiting the same region and interacting with each other
- biosphere
- the regions of the surface and atmosphere of the Earth where living organisms exist
- theory
- a tentative theory about the natural world
- demography
- the branch of sociology that studies the characteristics of human populations
- nitrogen cycle
- nitrogen travels through the air, into the ground, into the plants, consumer eats plants, and then into soil
- biomass
- the total mass of living matter in a given unit area
- nucleolus
- a small round body of protein in a cell nucleus
- greenhouse effect
- warming that results when solar radiation is trapped by the atmosphere
- cell theory
- the theory that cells form the fundamental structural and functional units of all living organisms
- biome
- a major biotic community characterized by the dominant forms of plant life and the prevailing climate
- biology
- the science that studies living organisms
- inference
- the reasoning involved in drawing a conclusion or making a logical judgment on the basis of circumstantial evidence and prior conclusions rather than on the basis of direct observation
- chromatin
- the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins
- mitochondrian
- powerhouse of organell
- cytoplasm
- the protoplasm of a cell excluding the nucleus
- age structure
- the number and proportion of people at each age in a population
- chloroplast
- plastid containing chlorophyll and other pigments
- niche
- the status of an organism within its environment and community
- nitrogen fixation
- the assimilation of atmospheric nitrogen by soil bacteria and its release for plant use on the death of the bacteria