In the blastocyst, the trophoblast will become whereas the embryoblast (inner cell mass) will become .

Select one:

the embryo; part of the placenta

part of the placenta; the embryo

part of the placenta; the yolk sac

the embryo; the yolk sac

Answer and Explanation

The Correct Answer is B

A. the embryo; part of the placenta. The embryoblast (inner cell mass) will become the embryo, but the trophoblast will become part of the placenta, not the embryo.

B. part of the placenta; the embryo. The trophoblast forms part of the placenta and helps in its development, while the embryoblast (inner cell mass) will develop into the embryo.

C. part of the placenta; the yolk sac. While the trophoblast does contribute to the formation of the placenta, the embryoblast (inner cell mass) develops into the embryo, not the yolk sac. The yolk sac is derived from extraembryonic mesoderm and endoderm, not the inner cell mass directly.

D. the embryo; the yolk sac. The embryoblast (inner cell mass) develops into the embryo, but the trophoblast does not become the yolk sac. The yolk sac is formed from structures surrounding the embryo, not from the trophoblast itself.

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Correct Answer is C

Explanation

A. Extracellular fluid (ECF) includes all the fluid outside of cells, such as interstitial fluid, blood plasma, and lymph. However, the majority of body water is found inside the cells.

B. Blood plasma and lymph are components of the extracellular fluid. Although they contain water, they do not hold the greatest volume compared to intracellular fluid.

C. Intracellular fluid (ICF) refers to the fluid within the cells, and it constitutes the largest volume of water in the body.

D. Tissue (interstitial) fluid is part of the extracellular fluid found between cells. While it contains a significant amount of water, it does not account for the greatest volume in the body.

A. false B. true

Correct Answer is True

Explanation

Progesterone actually works to maintain the uterine lining and prevents uterine contractions during pregnancy, helping to prevent premature labor. Therefore, this statement is false.

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In the blastocyst, the trophoblast will become__________ whereas the embryoblast (inner cell mass) will become __________.

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Naxlex Comprehensive Predictor Exams

Where is the greatest volume of water in the body?

Correct Answer is C

Explanation

Progesterone stimulates uterine contractions.

Correct Answer is True

Explanation

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In the blastocyst, the trophoblast will become whereas the embryoblast (inner cell mass) will become .