Chemical defenses are found in all of the following except
A. marine animals.
B. insects.
C. plants.
D. snakes, spiders, and fishes.
E. Batesian mimics.
E. Batesian mimics.
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Answer the question using the accompanying figure. Which branch is most closely related to (shares a unique
common ancestor with) the eukaryotes?
a. A b. B c. C d. D e. E
In males, genes on the X chromosome are
A) expressed. B) disease-causing. C) mutant. D) autosomal.
A higher protein concentration within the distal portion of capillaries draws water into them through the process of
A. diffusion. B. facilitated diffusion. C. active transport. D. filtration. E. osmosis.
What does the fact that all organisms use essentially the same genetic code suggest about the origin of life?
What will be an ideal response?