Thin filaments are mostly made of the protein
A) actin.
B) titin.
C) myosin.
D) tropomyosin.
E) nebulin.
A
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You play a trick on your little brother and replace all the sugar in the sugar bowl with salt. In the morning, you find him eating a bowl full of cereal with salt on it. You realize he's eaten quite a bit of salt! Which is likely to occur?
A. Urine osmolarity would decrease. B. Atrial natriuretic factor secretion would decrease. C. Secretion of vasopressin would decrease. D. Firing by hypothalamic osmoreceptors would decrease. E. Secretion of atrial natriuretic factor would increase.
Label J represents which of the following structures?
A) syncytial trophoblast
B) developing villi
C) lacuna
D) uterine gland
E) amniotic cavity
Match these vocabulary terms to their meanings.
Synaptic transmission using acetylcholine would be disrupted by ________.
A. botulinum toxin B. strychnine C. curare D. Both curare and botulinum toxin are correct.