Trematodes (flukes) have a digestive tube that ends in one or more pouches called caeca.

a. true
b. false


Ans: a. true

Biology & Microbiology

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Which muscle contraction is involuntary?

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Biology & Microbiology

The evolutionary species concept states that for a population to be declared a separate species:a

it must have diverged significantly from other populations. b. it must be morphologically different from any other population. c. it must not interbreed with any other population. d. it must occupy a different niche than any other population. e. it must have undergone natural selection sometime in its history

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Select all of the processes that cause flux of carbon into the atmosphere:

What will be an ideal response?

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The primary function of the mitochondrion is the production of ATP. To carry out this function, the mitochondrion must have all of the following except

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Biology & Microbiology