Biology 1-3 Studying Life
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- Living things all share several ______________________ that they have in common.
- characteristics
- Name at least 3 characteristics that living things share.
- 1)Made of cells. 2)Reproduce 3)Are based on universal genetic code. 4)Grow & develop. 5)Respond to environment.6)obtain &use materials & energy.7)change over time.
- Taken as a group, living things do not change over time. TRUE or FALSE
- FALSE,
- What is a cell?
- A collection of living matter enclosed by a barrier that separates the cell from its surroundings.
- Name 3 things cells can do:
- Grow, respond to their surroundings, and reproduce.
- Cells are simple and highly unorganized units. TRUE OR FALSE.
- FALSE, Cells are complex and highly organized.
- Living things consisting of only a single cell:
- unicellular organisms
- Plants and animals consisst of ____________________ organisms.
- multicellular
- What process do all organisms use to produce new organisms?
- Reproduction
- List two basic kinds of reproduction:
-
Sexual: 2 cells from parents unite to produce cell of new organism.
Asexual: The new organism has a single parent. - What is DNA:
- a molecule that carries the genetic code that determines the inherited traits of every organism on Earth.
- What is Metabolism?
- The combination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes.
- All organisms take in selected materials that they need from their _______________, or ________________.
- surroundings or environment
- How do plants, some bacteria & most algae obtain their energy?
- Directly from sunlight be a process called Photosynthesis.
- How do organisms called decomposers obtain their energy?
- From the remains of dead organisms.
- How do living things maintain their internal temperature?
- Homeostasis.
- Change over time.
- Evolve
- Over a few generations, the changes in a group are significant. TRUE OR FALSE
- FALSE, it takes over hunderds of thousands or even millions of years for dramatic changes in organisms.
- The diversity of life is so great that biologists can't study everything. TRUE OR FALSE
- TRUE.
- Name other branches, or divisions of biology.
- Zooligy: anmials, Botanists: Plants, Ethologists: animal behavior, Paleontologist: life in the past.
- The many levels at which life can be studied include m___________, c_____, O___________, populations of a single organism, communities of populations living in the same area, and the b_________.
-
molecules, cells, organisms,
biosphere. - Name some of the levels of organization of interest to biologists.
- Biosphere, Ecosystem, Community, Population, Organism, Groupfs of cells, Cells, Molecules
- What is the largest & most complex level of Organization of living things?
- Biosphere
- What is the Ecosystem?
- Community and its nonliving surroundings.
- More than any other science, biology helps you understand what?
- The things that affect the quality of our life.
- Describe Biology is used in Everyday Life:
- It describes: Condition for good health & behaviors & diseases that can harm you, Can diagnose & treat medical problems, It identifies environmental factors that threaten you.
- Do biologists make the decisions about most matters affecting human society or the natural world?
- No, citizens and governments do.
- Living things share characteristics including C_________ o____________, r__________, a universal g______ c_______, g_______ & d_____________, use of m_________ & e________, response to their e______________, and maintaining an i_________ stabilit
- cellular organization, reproduction, genetic code, growth & development, use of materials & energy, environment, internal