In the intestinal tract, Entamoeba histolytica

A. lives as a commensal in the lumen of the intestine.
B. can invade the host tissue.
C. can undergo excystation in the small intestine.
D. All of the choices are correct.


Answer: D

Biology & Microbiology

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Mitochondria likely arose from _________ and chloroplasts likely arose from _________

Fill in the blank(s) with correct word

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The adrenal cortex produces

a. aldosterone. b. epinephrine. c. norepinephrine. d. testosterone. e. glucagon

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Which of the following hormones is NOT

produced in ovaries?

a. estrogen b. progesterone c. testosterone d. all of these are produced in the ovaries e. more than one of these is NOT produced in the ovaries

Biology & Microbiology

In eukaryotes many genes may be affected by a steroid hormone because they are clustered in operons

1.True 2.False

Biology & Microbiology