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Natural Selection
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Modern frog larvae resemble some primitive vertebrate larvae. This similarity may suggest that primitive vertibrates
A
evolved before frogs
B
belong to the same species as frog
C
share a common ancestor with frogs
D
evolved from frogs
2) When lions prey on a herd of antilopes, some antelopes are killed and some escape. Which part of Darwin's concept of natural selection migh be used to describe this situation?
A
survival of the fittest
B
descent with modification
C
reproductive isolation
D
acquired characteristics
3) Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be observed. These features are an example of ______.
A
vestigial structures
B
homologous structures
C
artifical selection
D
comparative embryology
4) Darwin noticed that many organisms seemed well suited to
A
being preserved as fossils
B
surviving the environment they inhabited
C
providing humans with food
D
swimming from South America to Galapagos Islands
5) When a farmer breeds only his or her best livestock, the process involved is
A
artificial variation
B
survival of the fittest
C
natural selection
D
artifical selection
6) Which of the following is biochemical evidence for evolution?
A
Human hemoglobin is different than mouse hemoglobin
B
Embryonic human hemoglobin is different from adult human hemoglobin
C
Human hemoglobin is more similar to chimp hemoglobin than mouse hemoglobin
D
Hemoglobin in humans can vary between different individuals
7) What is the movement of genes into and out of a gene pool called?
A
migration
B
nonrandom mating
C
direct evolution
D
random mating
8) Mutations occur because of ______.
A
the introduction of new variations from elsewhere
B
the introduction of new variations through mistakes in DNA replication
C
the chance survival and reproduction of new variations
D
change in allele or genotype frequencies
9) The theory of continental drift hypothesizes that Africa and South America slowly drifted apart after once being a single landmass. The monkeys on the two continents, although similar, show numerous genetic differences. Which factor is probably the
A
comparative embryology
B
fossil records
C
geographic isolation
D
comparative anatomy
10) According to Darwin's theory of natural selection, individuals who survive are the ones best adapted for their environment. Their survival is due to the
A
lack of competition within species
B
choices made by plant and animals breeders
C
possession of inherited adaptations that maximize fitness
D
possession of adaptations developed through use
*select an answer for all questions
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