FINAL EXAM: CHAPTERS 10–19

QUESTION 1

  1. ____ is the study of body plans and structures.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 2

  1. ​Humans have ____ symmetry and are ____.
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 3

  1. An allele is ____ if its effect masks that of a ____ allele paired with it.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 4

  1. Which most accurately describes the expression “recombinant DNA”?
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 5

  1. In humans, skin color is controlled by several genes. Thus, skin color is a(n) ____ characteristic.
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 6

  1. ​Which animal has radial symmetry, a gastrovascular cavity, and the same opening for the entry of food and expulsion of waste?
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 7

  1. Lichens are an important component in many ecosystems because they ____.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 8

  1. At the bottom or base of an energy pyramid are the ____.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 9

  1. The discovery of identical plant and animal fossils by Alfred Wegener in 1915 on either side of the Atlantic Ocean is evidence of ____.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 10

  1. ​Which animal lacks symmetry, has no embryonic tissues, and has intracellular digestion?
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 11

  1. ​What is one result of the bottleneck effect?
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 12

  1. The genomes of closely related species are more similar than distantly related species because _____.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 13

  1. Which represents an early stage in primary succession?​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 14

  1. Hind leg bones in whales are an example of ____ structures.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 15

  1. Red coat is dominant in horses and white coat is recessive. In a cross between a homozygous dominant red-coated horse and a white-coated horse, what genotype(s) would be observed in the offspring?​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 16

  1. ​Bacteria can exchange genes with other bacteria by a method called ____.
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 17

  1. Fungal cell walls consist primarily of ____.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 18

  1. One disadvantage of hydroelectric energy as a renewable power source is that ____.​
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 19

  1. ​Both mitochondria and chloroplasts are thought to have evolved by the process of ____.
    a.
    b.
    c.
    d.
    e.

5 points   

QUESTION 20

  1. Seawater and freshwater mix in which coastal region?​
    a.
    b.
    c.
    d.
    e.

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