BIOLOGY- EVOLUTION REVIEW EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS GRADED A+
Stabilizing selection - Answer-Form of natural selection by which the center of the curve remains in its current position; occurs when individuals near the center of a distribution curve have higher fitness than in...
Stabilizing selection - Answer-Form of natural selection by which the center of the curve
remains in its current position; occurs when individuals near the center of a distribution
curve have higher fitness than individuals at either end
Disruptive selection - Answer-Form of natural selection in which a single curve splits
into 2; occurs when individuals at the upper and lower ends of a distribution curve have
higher fitness than individuals near the middle
Genetic drift - Answer-Sum total of all the different forms of genetic info carried by all
the organisms living on earth today
Founder effect - Answer-Change in allele frequencies as a result of the migration of a
small subgroup of a population
Harry- Weinberg principle - Answer-Principle that allele frequencies in a population will
remain constant unless one or more factors cause the frequencies to change
Antibiotics - Answer-One of medicine's greatest weapons against bacterial diseases
Speciation - Answer-Formation of new species
Reproductive isolation - Answer-Separation of species or populations so That they can't
interbreed and produce fertile offspring
Behavioral isolation - Answer-Form of reproductive isolation in which 2 populations have
differences in courtship rituals or other types of behavior that prevent them from
interbreeding
Geographic isolation - Answer-Form of reproductive isolation in which 2 populations are
separated physically by geographic barriers, such as rivers, mountains or stretches of
water
Temporal isolation - Answer-Form of reproductive isolation in which 2 populations
reproduce at different times
Analogous structures - Answer-Structures of different species having similar or
corresponding function but not the same evolutionary origin
, Convergent evolution - Answer-Process by which unrelated organisms independently
evolve similarities when adapting to Similar environments
Coevolution - Answer-Process by which 2 species evolve in response to changes in
each other
Punctuated equilibrium - Answer-Pattern in which long stable periods are interrupted by
brief periods of more rapid change
Phylogeny - Answer-The study of evolutionary relationships among organisms
Cladogram - Answer-Diagram that shows the evolutionary relationships among a group
of organisms
________ -defined as differences among individuals of a species in nature - Answer-
Natural variation
Farmers would use _____ to determine which natural variation that they found (only
fastest horses, cows that gave the most milk were allowed to reproduce offspring) -
Answer-Selective breeding
The individuals who survived in an environment was due to - Answer-Possession of
inherited adaptions that maximize fitness
Define artificial selection and give an example - Answer-Intentional breeding of plants
and animals
Which of the following can be an adaption?
A) physical
B) geographical
C) behavioral
D) trait acquired during the organism's lifetime
E) artificial selection - Answer-Physical and behavioral
Define common descent - Answer-Principle that all living things come from common
ancestors
____ - the ability of an organism to survive and reproduce in its environment - Answer-
Adaptation/ fitness
Define vestigial organs and give 2 examples - Answer-Not needed/ used body parts
- wisdom teeth
- appendix
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