In cnidarians, what is found between the epidermis and the gastrodermis?
a. ectoderm
b. mesoglea
c. endoderm
d. various organelles
e. mesoderm
B
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Homology is evidence of ________.
A. .natural selection B. binomial classification C. artificial selection D. common ancestry
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.
Haemophilus influenzae is the most common bacterial cause of pinkeye
Indicate whether the statement is true or false
Reptiles, birds, and some mammals share which of the following characteristics?
A) produce amniotic eggs B) are predators C) are warm-blooded D) exhibit live birth E) have light, hollow bones