Why are the seminal vesicles important for human reproduction? a. they produce the materials needed by the sperm to travel to the egg. b. they allow the sperm to be stored and the sperm mature. c. they produce sperm cells that will fertilize the egg. d. they allow the sperm to travel to the urethra to be released.

It's C because its an immune activity in the female reproductive tract.

A. They produce the material needed by the sperm to travel to the egg.

Explanation:

Seminal vesicles also called seminal glands are located in the pelvis between the bladder and rectum.

These are elongated tubular structures and are a part of male internal genital organs. Others being testes, Epididymis, vas deferens, ejaculatory ducts, prostate and bulbo-urethral glands (Cowper's glands).

Seminal glands secrete a thick alkaline fluid rich in fructose into the semen. This fluid constitutes a good proportion of semen. Fructose is a source of energy for the sperms. Alkalinity of this fluid helps in neutralizing the acidic vaginal tract and eases the commute of sperms.

Seminal vesicles are not responsible for storing and maturation of sperms.

Coming back to the answer choices,

A.

They produce the materials needed by the sperm to travel to the egg.

This is the correct answer choice. The secretion of seminal vesicles helps in the commute of sperms in the acidic vaginal tract.

B.

They allow the sperm to be stored and help the sperm mature.

This is the wrong answer choice as epididymis is responsible for storage and maturation of sperms.

C.

They produce sperm cells that will fertilize the egg.

This is the incorrect answer choice as testes are responsible for sperm production.

D.

They allow the sperm to travel to the urethra to be released.

Vas deferens (ductus deferens) is responsible for transporting sperms from the epididymis to the urethra.

i say that the answer is 'd'