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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 A

Explanation

A. Two haploid (n) cells; four haploid (n) cells: At the end of meiosis I, the result is two haploid cells, each with half the number of chromosomes of the original cell. At the end of meiosis II, these two haploid cells divide again to form a total of four haploid cells.

B. Two diploid (2n) cells; one haploid (n) cell: This option is incorrect because meiosis I produces two haploid cells, not diploid cells, and meiosis II produces four haploid cells, not one.

C. Two diploid (2n) cells; four haploid (n) cells: This option is incorrect because meiosis I does not produce diploid cells; it produces two haploid cells. At the end of meiosis II, the result is four haploid cells, which is correct, but the description of meiosis I is incorrect.

D. Two haploid (n) cells; one diploid (2n) cell: This is incorrect because meiosis I results in two haploid cells, and meiosis II results in four haploid cells, not one diploid cell.

Correct Answer is D

Explanation

A. Corpuscle: The corpuscle refers to the glomerulus and Bowman's capsule, not the medial concavity of the kidney.

B. Cortex: The cortex is the outer region of the kidney, not the medial concavity.

C. Medulla: The medulla refers to the inner part of the kidney but not specifically the medial concavity.

D. Hilum: The hilum is the medial concavity of the kidney where blood vessels, nerves, and the ureter enter and exit.

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