A cross bridge is the binding of which two proteins?
A. Myosin and troponin
B. Actin and troponin
C. Actin and myosin
D. Collagen and troponin
E. Myosin and collagen
Answer: C
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If our bodies are capable of secondary responses, how do people contract influenza more than once?
a. Memory cells lose their ability to recognize antigens after six months. b. The affinity of antibodies diminishes in the secondary response. c. New varieties of flu virus continuously evolve. d. Our bodies cannot launch a strong enough immune response against the flu virus. e. There are no effective vaccinations for the flu.
The semicircular canals
A) are arranged in three perpendicular planes. B) contain a thin basilar membrane. C) are lined by long rows of hair cells along their entire length. D) transmit vibrations from the oval window to the saccule.
Reactions involving ligases are typically ________ reactions
A) anabolic B) catabolic C) both anabolic and catabolic D) neither anabolic nor catabolic E) exergonic
________ are superficial mycoses that cause white masses or dark masses to develop on the hair shaft.
Fill in the blank(s) with the appropriate word(s).