What can be said about 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.
D. They are water-soluble and bind membrane receptors to elicit a response on target cells.
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The cell body of the second neuron of the parasympathetic division is located outside of the CNS
Indicate whether the statement is true or false.
The body's acid-base balance relies strongly on
a. reabsorption. b. filtration. c. secretion. d. urination. e. neutralization.
What are the results of nondisjunction, and why are these chromosome alterations so detrimental to an individual?
What will be an ideal response?
Based on the information given, which of the organisms described below most likely has the lowest fitness?
a) a sand-colored mouse living at the beach b) a sterile organism that lives twice as long as the average longevity in its population c) a dark-colored mouse living in the brown brush d) a short-lived rabbit with a greater than average number of offspring, relative to other individuals in its population e) a human who dies at age 40 who has had four children