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BIOL 1407 Exam 1 Review
- Course
- BIOL-1407
- Institution
- Tarleton State University
This is a comprehensive and detailed review on Exam 1 for Biol 1407.
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Exam 1 Review1. What theory was Darwin the first to propose?
2. What MUST exist in a population before natural selection can act upon that
population?
3. The role that humans play in artificial selection is to _____
4. What are homologies?
5. What must be true of any organ described as vestigial?
6. Structures as different as human arms, bat wings, and dolphin flippers contain many
of the same bones, which develop from similar embryonic tissues. These structural
similarities are an example of _____.
7. Which of the following evidence most strongly supports the common origin of all life
on Earth? All organisms have the same _____
8. Three populations of crickets look very similar, but the males have courtship songs
that sound different. What function would this difference in song likely serve if the
populations came in contact?
9. A type of reproductive isolation mechanism in which the differences in the timing of
critical reproductive events prevent members of closely related species from mating
and producing hybrid offspring.
10. Macroevolution is ___________
11. Most causes of speciation are relatively slow, in that they may take many generations
to see changes, with the exception of ________
12. Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart
when they are fertile. This kind of isolation is most similar to which of the following
reproductive isolating mechanisms?
13. Two species of frogs belonging to the same genus occasionally mate, but the
embryos stop developing after a day and then die. These two frog species separate
by _______.
14. The production of sterile mules by interbreeding between female horses (mares) and
male donkeys (jacks) is an example of ___________
15. Speciation can involve changes to a single ______.
16. How are two different species most likely to evolve from one ancestral species?
(Allopatric or Sympatric speciation?)
17. What trait do bacteria and archaeans share?
18. Individuals that are heterozygous for the sickle cell allele, and are resistant to malaria
are an example of______ advantage
19. Human child birth weight being optimal in the intermediate range is an example of
what type of selection?
20. Light clams (that resemble stones) and dark clams (that resemble shadows) are both
less likely to be spotted and eaten by predators than their gray (intermediate)
counterparts. What type of selection does this display?
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