The muscles of the myometrium:

A. are sloughed off during menstruation.
B. create the contractions of labor and orgasm.
C. form the external cover of the uterus.
D. are very weak and are incapable of expanding


B. create the contractions of labor and orgasm.

Biology & Microbiology

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Which taxon is not a member of the basal angiosperm group?

a. Ginkgo biloba b. Nymphaeales c. Austrobaileyales d. Amborella trichopoda e. Magnoliales

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Why do immunizations require two doses?

a. The first dose stimulates the effector cells only, and the second dose stimulates the memory cells only. b. The first dose stimulates the primary immune response, and the second dose stimulates the secondary immune response. c. In case the first dose isn't enough to induce immunity, a second dose is given. d. It is a way for doctors to make more money. e. Both c and d are correct

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All of the following are teratogens except _____

1. thalidomide 2. tetracycline 3. medical X-rays 4. Toxoplasma gondii 5. alcohol

6. all of these are considered teratogens

Biology & Microbiology

The phenomenon of fusion is likely to occur when, after a period of geographic isolation, two populations meet again and _____

A) an increasing number of infertile hybrids is produced over the course of the next one hundred generations B) no reproduction occurs in the hybrid zone C) an increasing number of viable, fertile hybrids is produced over the course of the next one hundred generations D) a decreasing number of viable, fertile hybrids is produced over the course of the next one hundred generations

Biology & Microbiology