In cnidarians, what is found between the epidermis and the gastrodermis?

a. ectoderm
b. mesoglea
c. endoderm
d. various organelles
e. mesoderm


B

Biology & Microbiology

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Homology is evidence of ________.

A. .natural selection B. binomial classification C. artificial selection D. common ancestry

Biology & Microbiology

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.

Biology & Microbiology

Haemophilus influenzae is the most common bacterial cause of pinkeye

Indicate whether the statement is true or false

Biology & Microbiology

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

Biology & Microbiology