SCI 115 Florida University Introduction to Biology Questions

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QUESTION 1

  1. Which type of fossil is considered a trace fossil?
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 2

  1. Darwin incorporated Malthus’ idea that _____ into his theory of evolution.
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 3

  1. An example of morphological divergence is the wing of a bat and the ____.
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 4

  1. When a certain form of a trait increases the fitness of the individual, this allele will tend to ____ over time.
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 5

  1. How are fossils older than 60,000 years dated?
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 6

  1. Puppies born too large experience difficulties during birthing and tend to have respiratory and other problems. Puppies born too small often can’t compete with their siblings for their mother’s milk. Thus, puppies of intermediate size have a survival advantage. This is an example of ____ selection.
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 7

  1. The branch points on a cladogram represent ____.
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 8

  1. In a population of rabbits, those able to outrun predators will survive to reproduce, eventually leading to a population of faster rabbits. This is an example of ____ selection.
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 9

  1. Two species of toads have been successfully interbred in a laboratory but do not hybridize in nature because one species mates in summer and the other mates in the fall. This is an example of ____ isolation.
    a.
    b.
    c.
    d.
    e.

3 points

QUESTION 10

  1. A random change in allele frequency over time that is brought about by chance alone is known as ____.
    a.
    b.
    c.
    d.
    e.

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