Animals that consume Brazil nuts derive nutrition mostly from tissue whose nuclei have how many chromosomes?
A) 17
B) 34
C) 51
D) 68
C
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Mitochondrial DNA differs from nuclear DNA in that it
A) crosses over within the same strand. B) is inherited from the father only. C) is present only in cells of the nervous and muscular systems. D) is poorer at DNA repair.
What polysaccharide forms the long, tough fibers found in plant cell walls?
A. chitin B. cellulose C. amylopectin D. glycogen E. starch
Glycosylated proteins and lipids within the plasma membrane are important for
A. cell protection. B. cell recognition and protection. C. cell energy storage. D. cell recognition. E. cell protection and energy storage.
Which of the following is mismatched?
A. somatic motor nerves-smooth muscle, cardiac muscle, glands B. sensory nerves-afferent C. motor nerves-efferent D. visceral sensory nerves-body organs E. somatic sensory nerves-skin, muscles, joints, special senses