Second messengers generated by the actions of phospholipase C ________.
A. are inhibited by the actions of caffeine
B. are stimulated by phosphodiesterases
C. stimulate gene transcription
D. may activate calmodulin
Answer: D
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The lumbar regions are located lateral to the umbilical region.
Answer the following statement true (T) or false (F)
The thoracic cavity contains the
A) coelom. B) pericardial cavity. C) pelvic cavity. D) pleural cavities. E) pericardial and pleural cavities.
Of the four classes of tissues, the tissue that consists of elongated fibers that are specialized to contract in response to stimulation is ______
A. connective tissue B. nervous tissue C. muscle tissue D. epithelial tissue
Which reflex shows the least synaptic delay?
A) A polysynaptic reflex B) The tendon reflex C) The withdrawal reflex D) The cross extension reflex E) The flexor reflex