What can we learn about evolution of the vertebrates by examination of embryos?
What will be an ideal response?
The embryos of vertebrates have many similar characteristics, such as gill pouches and tails.
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Which situation is an example of diversifying selection?
A) A population of moths with white and grey forms lives in a forest containing trees with light and dark bark. B) Because bees prefer dark blue flowers, this color gradually becomes more dominant in a population of plants with a color ranging from light blue to dark blue. C) A population of plants develops all orange fruit instead of a mixture of yellow, red, and orange fruit, due to animals showing a preference for orange fruit. D) Wild cat populations gradually develop spots that allow them to be camouflaged in the dark forest.
Which example best illustrates homoplasy?
a. shark fins and dog tails b. whale fins and bat wings c. bird wings and insect wings d. cactus spine and pea tendril e. elongated snout of aardvarks and pangolins
Chromosomal gene exchange is not useful in classification studies because prokaryotes do not reproduce sexually.
Answer the following statement true (T) or false (F)
Match probabilities are calculated using the ________.
Fill in the blank(s) with the appropriate word(s).