Oxytocin is a hormone that is involved with increasing contractions during childbirth. The action is
binding to membrane receptors and the result is increasing sodium and calcium. Oxytocin is most
likely a
a. peptide or protein.
b. steroid.
c. carbohydrate.
d. prostaglandin.
e. fatty acid derivative.
A
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Campylobacter jejuni subsp. jejuni grows best at what conditions?
a. 37°C under microaerobic conditions b. 37°C under anaerobic conditions c. 42°C under microaerobic conditions d. 42°C under anaerobic conditions
In the Northern Hemisphere, seasonal variation in temperatures is caused mainly by ____
a. the Earth's elliptical orbit taking it closer to and farther away from the sun b. the Earth's tilt on its axis of 23.5
Which of these is not a form of kinetic energy?
A) a cyclist pushing the pedals of a bike B) a condor flapping its wings C) a ball rolling down a hill D) a covalent bond linking phosphate molecules E) a runner, sprinting toward the finish line
If at the last minute the pitcher decides to throw a curveball, which tissue responds first?
A. Nerve tissue B. Muscle tissue C. Ectoderm D. Epithelial tissue