AnswersAL-Biology Critical StandardsFactors Affecting Biological Diversity-Standard Bio 4.4

Factors Affecting Biological Diversity Answers

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4

No increase in diversity: directional selectiondisruptive selectionX stabilizing selection

A
directional selection
B
disruptive selection
C
stabilizing selection
5

One extreme trait is favored: ✔ directional selectiondisruptive selectionstabilizing selection

A
directional selection
B
disruptive selection
C
stabilizing selection
6

Diversity decreases: directional selectiondisruptive selection✔ stabilizing selection

A
directional selection
B
disruptive selection
C
stabilizing selection
7

Diversity increases: directional selection✔ disruptive selectionstabilizing selection

A
directional selection
B
disruptive selection
C
stabilizing selection
8

Complete the sentence below by selecting the correct words from the drop-down menus.Factors that affect natural selection include variationsimilarity, underpopulationoverpopulation, and adaptationextinction.

A
variation
B
similarity
9

What are the two phases of speciation?

A
geographic isolation and variation
B
adaptation and reproductive isolation
C
adaptation and variation
D
geographic isolation and reproductive isolation
10

A population of wildflowers is separated by an eight-lane superhighway. Pollen is often carried by the wind across the highway and can pollinate the flowers on the other side of the highway. Can speciation occur in this situation?

A
No, because the populations are not reproductively isolated.
B
No, because the populations are not geographically isolated.
C
Yes, because the populations are reproductively isolated.
D
Yes, because the populations are geographically isolated.
12

Which piece of evidence would most go against the scientist’s argument and suggest that the butterflies are actually different species?

A
The butterflies have similar wing structure.
B
The butterflies have different mating seasons.
C
The butterflies have similar migration patterns.
D
The butterflies have variations in color patterns.
15

Question text not available

Answers:
Selection 1:directional selection
Selection 2:disruptive selection
Selection 3:disruptive selection
Selection 4:directional selection
Selection 5:directional selection
Selection 6:stabilizing selection
Selection 7:disruptive selection
17

Which type of natural selection is at work here?

A
directional selection
B
disruptive selection
C
stabilizing selection
18

Which type of natural selection is at work here?

A
directional selection
B
disruptive selection
C
stabilizing selection
19

Results in new species: directional selection✔ disruptive selectionstabilizing selection

A
directional selection
B
disruptive selection
C
stabilizing selection

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