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