The hormone involved in childbirth that participates in a positive feedback loop is
1.estrogen.
2.progesterone.
3.somatostatin.
4.oxytocin.
5.vasopressin.
4
Biology & Microbiology
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Of the following, AIDS is usually transferred by:
a. casual contact b. food c. water d. sexual intercourse e. insect bites
Biology & Microbiology
Which white blood cell(s) is (are) the only
cell(s) that produces antibodies?
a. B cell b. T cell c. natural killer cell d. dendritic cell e. all of these
Biology & Microbiology
Briefly discuss behavioral mechanisms that ectotherms can use to regulate their body temperature. What will be an ideal response?
Biology & Microbiology
When contracted, ________ prevents movement of chyme from the stomach to the small intestine
A) peristalsis B) reverse peristalsis C) the epiglottis D) a sphincter
Biology & Microbiology