Biology 20 Final Exam Review Questions And Answers
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Course
Biology 202
Institution
Biology 202
Ecology - ANS Scientific study of interactions among organisms and between organisms and their environment
Species - ANS a group of individual organisms that have the capacity to interbreed and produce viable offspring with each other
population - ANS A group of indivi...
Biology 20 Final Exam Review
Questions And Answers
Ecology - ANS Scientific study of interactions among organisms and between organisms
and their environment
Species - ANS a group of individual organisms that have the capacity to interbreed and
produce viable offspring with each other
population - ANS A group of individuals that belong to the same species and live in the
same area
community - ANS an assemblage of populations living close enough for potential
interaction (not including abiotic factors)
ecosystem - ANS A biological community of interacting organisms and their physical
environment. (both biotic and abiotic)
autotroph - ANS An organism that makes its own food (convert sunlight to glucose through
the process of photosynthesis)
heterotroph - ANS An organism that cannot make its own food. (obtain their energy from
other organisms)
food chain - ANS A series of steps in which organisms transfer energy by eating and being
eaten
food web - ANS A community of organisms where there are several interrelated food
chains
Why are frogs a good indicator species? - ANS they live on land and in water
water cycle - ANS The continuous process by which water moves from Earth's surface to
the atmosphere and back
carbon cycle - ANS The organic circulation of carbon from the atmosphere into organisms
and back again
, major processes that release CO2 into the atmosphere - ANS combustion and respiration
nitrogen cycle - ANS The transfer of nitrogen from the atmosphere to the soil, to living
organisms, and back to the atmosphere
Phosphorus cycle - ANS The movement of phosphorus atoms from rocks through the
biosphere and hydrosphere and back to rocks. (does not have an atmospheric component)
evolution - ANS Change in a kind of organism over time; process by which modern
organisms have descended from ancient organisms.
Order of classification - ANS Kingdom, Phylum, Class, Order, Family, Genus, Species
Lamark's theory of evolution - ANS If an organism changes during life in order to adapt to
its environment, those changes are passed on to its offspring. (use and disuse theory)
Darwin's theory of natural selection - ANS process by which individuals that are better
suited to their environment survive and reproduce most successfully therefore passing on their
better traits to their offspring
homologous structures - ANS Structures in different species that are similar because of
common ancestry.
analogous structures - ANS structures that do not have a common evolutionary origin but
are similar in function
vestigial structures - ANS remnant of a structure that may have had an important function
in a species' ancestors, but has no clear function in the modern species.
the light dependent reaction produces - ANS ATP, NADPH and O2 from the addition of
water and light
the light independent reaction produces - ANS sugar from the addition of CO2 and
products from the light-dependent reactions
Chlorophyll best absorbs ____ & ____ light - ANS blue and red light
light-dependent reactions - ANS set of reactions in photosynthesis that use energy from
light to produce ATP and NADPH
Light Independent Reactions (Calvin Cycle) - ANS set of reactions in photosynthesis that
do not require light; energy from ATP and NADPH is used to build high-energy compounds such
as sugar; also called the Calvin cycle
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