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The ______________is the gonad analogous to ovary?

A.

sperm; semen

B.

testis; semen

C.

semen; sperm

D.

testis; sperm

Answer and Explanation

The Correct Answer is D

A. Sperm; semen: Sperm is the male gamete, and semen is the fluid that contains sperm, but these are not analogous to the ovary, which is a gonad.

B. Testis; semen: The testis is the male gonad that produces sperm, but semen is the fluid that contains sperm. The analogous structure to the ovary is the testis, but this pairing with semen is not correct.

C. Semen; sperm: Semen is the fluid containing sperm, while sperm is the male gamete. Neither is a gonad, so this pairing is not analogous to the ovary.

D. Testis; sperm: The testis is the male gonad that produces sperm, making it analogous to the ovary, which is the female gonad that produces eggs.


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Related Questions

Correct Answer is C

Explanation

A. Ingestion refers to the process of taking in food through the mouth, not the absorption of nutrients into the body's tissues.

B. Digestion involves the breakdown of food into smaller molecules that can be absorbed, but it does not refer to the actual uptake of these nutrients into tissues.

C. Absorption is the process of taking up nutrient molecules into the bloodstream from the digestive tract, which then allows them to be used by the body's tissues.

D. Compaction refers to the process of absorbing water and consolidating indigestible residues into feces, not the absorption of nutrients into tissues.

Correct Answer is A

Explanation

A. Small intestine, particularly the ileum, contains Peyer's patches, which are abundant lymphoid tissues in the mucosa and submucosa. These structures are part of the immune system, protecting the body from pathogens in the digestive tract.

B. Stomach: While the stomach has some lymphoid tissue, it does not have as much as the small intestine, specifically the Peyer's patches.

C. Large intestine has lymphoid nodules, but it does not contain as much lymphoid tissue as the small intestine.

D. Esophagus has very little lymphoid tissue compared to the small intestine, as its primary function is to transport food rather than participate in immune defense.

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