Females of some bird species prefer computer-generated songs that are more compl

Question

Females of some bird species prefer computer-generated songs that are more complex than songs they normally hear from males during courtship. Such observations

Select one:

a. challenge the principle of parsimony.

b. support the principle of parsimony.

c. challenge the molecular clock hypothesis.

d. support the sensory exploitation hypothesis.

e. challenge the sensory exploitation hypothesis.

Biologists have used _______ to experimentally verify the accuracy of phylogenetic methods.

Select one:

a. bacteriophages

b. bacteria

c. yeast

d. nematodes

e. mustard plants

A maximum likelihood method is used in phylogenetic analyses when

Select one:

a. mathematical models fail to accurately describe evolutionary relationships.

b. only morphological information is available for modeling evolutionary change.

c. morphological information conflicts with developmental data.

d. the fossil record is fragmented, incomplete, or contains conflicting information.

e. several models for evolutionary change are tested to see which best fits the data.

Which statement about Rhagoletis pomonella is true?

Select one:

a. The apple- and hawthorn-feeding flies differ in their odor preferences.

b. The apple- and hawthorn-feeding flies can be considered incipient species because they show partial polyploidy.

c. The apple- and hawthorn-feeding flies emerge seasonally at approximately the same time.

d. The apple-laying fly is a distinct species from the hawthorn-laying fly.

e. Larvae of hawthorn-feeding flies grow more rapidly on apples than those of apple-feeding flies.

Which mechanism can lead to selection against hybridization?

Select one:

a. Temporal isolation

b. Behavioral isolation

c. Mechanical isolation

d. Hybrid inviability

e. Habitat isolation

Explanation / Answer

1. e. Challenge the sensory exploitation hypothesis

2. b. Bacteria

3. b. only morphological information is available for modeling evolutionary change.

4. d. The apple-laying fly is a distinct species from the hawthorn-laying fly.

5. b. Behavioral isolation

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