Trematodes (flukes) have a digestive tube that ends in one or more pouches called caeca.
a. true
b. false
Ans: a. true
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Which muscle contraction is involuntary?
A. Cardiac and smooth B. Skeletal only C. Cardiac, smooth, and skeletal D. Smooth only E. Cardiac only
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
Select all of the processes that cause flux of carbon into the atmosphere:
What will be an ideal response?
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
A) the membrane-bound electron transport chain carrier molecules. B) proton pumps embedded in the inner mitochondrial membrane. C) enzymes for glycolysis. D) enzymes for the citric acid cycle. E) mitochondrial ATP synthase.