In the Northern Hemisphere, seasonal variation in temperatures is caused mainly by ____
a. the Earth's elliptical orbit taking it closer to and farther away from the sun
b. the Earth's tilt on its axis of 23.5
ANSWER: b
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Imagine an earthworm that has no chaetae. How would the lack of chaetae affect movement of the earthworm?
A. The earthworm would have difficulty changing locations, since it cannot anchor itself in the soil. B. The earthworm would be much flatter than normal since it has no hydrostatic skeleton. C. The earthworm would only be able to extend its body segments. D. The earthworm would only be able to shorten its body segments. E. The earthworm would not be able to move at all. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the function of chaetae? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The pattern of locomotion used by gibbons and siamangs, where they use their arms to hang below
branches and swing forward, is called
a. bipedal movement. b. peristalsis. c. gliding. d. brachiation. e. orthokinesis.
Which step is catalyzed by the enzyme responsible for the Met 3 mutant?
A) homoserine ? cysteine B) cysteine ? cystathionine C) cystathionine ? homocysteine D) homocysteine ? methionine E) methionine ? homoserine
Persons who desire romantic and sexual relationships with those of the same gender are
A. homosexual. B. intersexual. C. heterosexual. D. All of the above are correct.