A reflex
a. only involves the use of sensory neurons.
b. is an automatic response to a stimulus that
requires considerable thought.
c. is an automatic response to a stimulus that
doesn't require thought.
d. is a and b only.
e. is a and c only.
B
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A woman with blood type B and a man with blood type A could have children with which of the following phenotypes?
A. AB or O B. A, B, or O C. A, B, AB, or O D. AB only
In the taxonomic hierarchy, a family consists of a group of similar
a. orders. b. classes. c. species. d. genera. e. domains.
What property defines most ligands for intracellular receptors?
A. They are hydrophilic B. They are large molecules C. They are molecules that can perform significant hydrogen bonding interactions with water D. They are lipid-soluble
Select the statement that is true when comparing solutions with a pH of 6 and a pH of 8.
A. The solution with a pH of 8 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 6. B. The solution with a pH of 6 has a 100 times lower concentration of hydrogen ions than a solution with a pH of 8. C. The solution with a pH of 6 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 8. D. The solution with a pH of 6 has a 2 times higher concentration of hydrogen ions than a solution with a pH of 8. E. Solutions with a pH of 8 has a 2 times lower concentration of hydrogen ions than a solution with a pH of 6.