Instructions

Which of the following is/are true?
A. Sympatric speciation is best described as a random event that disrupts the allele frequencies in a population
B. Redheaded females in a population will only breed with red-headed males. The yellow-headed females will only breed with yellow-headed males. The red and yellow populations live on separate continents and rarely met in nature. The red and yellow individuals could breed and produce fertile offspring, but they normally do not.
This would be an example of sympatric speciation
C. Sympatric speciation does not require geographic isolation
D. Redheaded females in a population will only breed with red-headed males. The yellow-headed females will only breed with yellow-headed males. This population lives in the same geographic area The red and yellow individuals could breed and produce fertile offspring, but they normally do not.
This would be an example of sympatric speciation.
E. Sympatric speciation can be due to sexual (mate) selection

14. Which of the following statements is/are accurate?
A. Horses and Mules can be bred but their offspring is typically sterile. This could be an example of a hybrid breakdown.
B. One sponge species releases its gametes during the night and another species releases its gametes during the day. This is an example of ecological isolation
C. One species of sea turtle mates during the early spring and closely related species mates during late spring. This is an example of temporal isolation
D. One species of sea urchins can not fertilize another closely related species because the eggs do not have a receptor for the sperm. This is a good example of gametic isolation.
E. Damselflies have sensory receptors that are sensitive to touch (tactile cues). Two related species of damselflies are unable to mate because their touch cues are not compatible. This is a good example of mechanical isolation.

16. Which of the following is/are true?
A. Redheaded females in a population will only breed with red-headed males. The yellow-headed females will only breed with yellow-headed males. This population lives in the same geographic area. The red and yellow individuals could breed and produce fertile offspring, but they normally do not.
This would be an example of sympatric speciation.
B. Sympatric speciation is best described as a random event that disrupts the allele frequencies in a population
C. Redheaded females in a population will only breed with red-headed males. The yellow-headed females will only breed with yellow-headed males. This population lives on separate continents and rarely met in nature. The red and yellow individuals could breed and produce fertile offspring, but they normally do not.
This would be an example of sympatric speciation
D. Sympatric speciation is never due to sexual (mate) selection
E. Sympatric speciation requires geographic isolation

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