Approximately what percentage of the immune system is located in the intestinal tract?

a) 1%
b) 10%
c) 100%
d) 70%


Ans: d) 70%

Biology & Microbiology

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The cell cycle is shown in this diagram. During which phase is the cytoskeleton dismantled?



a. G1
b. S
c. G2
d. Cytokinesis

Biology & Microbiology

What occurs during stage two of labor?

a. The cervix thins. b. The cervix dilates. c. The baby is expelled from the uterus. d. The placenta is expelled from the uterus.

Biology & Microbiology

For the first few days after birth, the mammary glands produce a pale fluid rich in proteins, antibodies, minerals, and

vitamin A known as ____. a. lanugo b. meconium c. colostrum d. surfactant e. premilk

Biology & Microbiology

The 50S ribosomal subunits are found in:

A. The Prokaryotes B. The Eukaryotes C. Both, the Eukaryotes and the Prokaryotes D. Neither the eukaryotes nor the prokaryotes

Biology & Microbiology