The major function of the small intestines is ____
a. motility
b. most nutrient absorption
c. beginning of the digestive process
d. endocrine secretions
e. production of waste products
ANSWER: b
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Explain the role of the following components in the experiment on carbon dioxide production.
(a) germinating corn seeds: (b) ungerminated (dry) corn seeds: (c) germinating, boiled corn seeds: (d) phenol red solution:
Homologous structures were "discovered" by findings that indicated that ____
a. species on different continents were not similar in form b. different geological layers held different kinds of fossils c. structures of similar form and position occurred in animals of markedly different size, shape, and lifestyle d. some structures found in animals are apparently useless e. some kinds of animals had apparently gone extinct
The cell in the accompanying illustration is in ____
a. prophase I. b. metaphase I. c. anaphase I. d. prophase II. e. anaphase II.
After the centrosomes duplicate they separate and form the poles of the ____.
A) Mitotic spindle B) Centromere C) Cell membrane D) Metaphase plate