Which of the following is NOT a feature shared by all animal respiratory surfaces?
A) They are thin. B) They have a large surface area.
C) They are moist. D) They are associated with a capillary bed.
D
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Producers in a swamp would most likely include all of the following EXCEPT _____.
A) foxes. B) grapevine pests. C) lice. D) mosquitos.
What is a characteristic of color vision?
a. It is limited to vertebrates. b. It depends on blue, green, and red cones in primates. c. It is the result of different concentrations of the photopigment rhodopsin. d. It results from special photoreceptors located within the optic nerve. e. It depends on four types of cones in mammals other than primates.
Water has the ability to dissolve salts and carry dissolved carbon dioxide. How does this action help the human body maintain homeostasis?
A) production of energy for cells B) distribution of needed materials to the cells C) removal of waste from the cells and the body D) absorption of needed materials from the environment
You are excited because you just purchased a male guppy that has red, blue and green colors on its fins and tail. Your guppies at home do not have this combination of colors. You place the new male in with three females for mating purposes. After three weeks you have many new baby guppies and with the new color combination. This is an example of which type of selection?
A. Convergent B. Natural C. Environmental D. Artificial E. Analogous