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Class Notes Unit 1 Biology II (BIOL-1407) $15.49   Add to cart

Class notes

Class Notes Unit 1 Biology II (BIOL-1407)

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Includes notes on basic genetics, how populations evolve, the origin of species, and tracing evolutionary history. Majority of answers to Mr. James' Exam 1 study guide are in these notes.

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  • April 5, 2024
  • 13
  • 2023/2024
  • Class notes
  • Corban james
  • Biology ii
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emmaadams

Available practice questions

Flashcards 44 Flashcards
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Some examples from this set of practice questions

1.

What theory was Darwin the first to propose?

Answer: Natural selection as mechanism for evolution

2.

Which of the following MUST exist in a population before natural selection can act upon that population?

Answer: genetic variation among individuals

3.

The role that humans play in artificial selection is to _____

Answer: choose which organisms reproduce

4.

Of the following anatomical structures, which is homologous to the bones in the wing of a bird?

Answer: bones in the flipper of a whale

5.

What must be true of any organ described as vestigial?

Answer: must be homologous

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 _____.

Answer: homology due to divergent evolution

7.

Which of the following evidence most strongly supports the common origin of all life on Earth? All organisms _____

Answer: use essentially the same genetic code

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?

Answer: behavioral reproductive isolating mechanism

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.

Answer: Temporal

10.

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 _______.

Answer: Reduced hybrid viability

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