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28 Cards in this Set

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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_________ stability.
cellular organization, reproduction, genetic code, growth & development, use of materials & energy, environment, internal