________ is an example of an element
A) Water
B) Carbon
C) Glucose
D) Salt
B
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Which of the following is TRUE of peptide hormones?
A. They are generally water-soluble. B. They bind membrane receptors to elicit a response on target cells. C. They bind intracellular receptors to elicit a response on target cells. D. They are water-soluble and bind membrane receptors to elicit a response on target cells. E. They are lipid soluble.
Biofilms
A. are a haphazard mixture of bacteria. B. are a polysaccharide-encased community of microorganisms. C. may enhance bioremediation efforts. D. may protect organisms against harmful chemicals. E. are a polysaccharide-encased community of microorganisms, may enhance bioremediation efforts, AND may protect organisms against harmful chemicals.
During muscle contractions, ____
a. the sarcomeres lengthen b. the actin and myosin filaments slide in the same direction c. the actin filaments move toward the middle of the sarcomere d. the muscle fibers elongate e. the muscle fibers are motionless
Sex-influenced genes cause males to be males and females to be females
Indicate whether the statement is true or false