Question

1. ___ is the male sex hormone that controls the production of sperm. *

penis
semen
testosterone
scrotum
testes

1. sperm is ejected from the male body through the ___ *

penis
semen
testosterone
scrotum
testes

1. sperm and other secretions from the male reproductive system make up *

penis
semen
testosterone
scrotum
testes

Explanation:

• Question 3: Testosterone is a hormone. Hormones are chemical messengers. In males, testosterone is crucial for sperm production. Penia is a part of the male reproductive organ (external), semen is a fluid (contains sperm), scrotum is a sac - like structure (holds testes), and testes are the organs (produce sperm, but the hormone controlling sperm production is testosterone).
• Question 4: The penis is the external organ through which sperm (in semen) is ejaculated. Semen is the fluid (contains sperm), testosterone is a hormone, scrotum is a sac (holds testes), and testes are the organs (produce sperm).
• Question 5: Semen is composed of sperm and secretions from the prostate gland, seminal vesicles etc. Penia is an organ, testosterone is a hormone, scrotum is a sac, and testes are organs (produce sperm).

Answer:

1. Testosterone
2. Penis
3. Semen