Question

1. the male and female sex cells are called

a. gametes.
b. chromosomes.
c. hormones.
d. zygotes.

Explanation:

To solve this, we analyze each option:

• Option a: Gametes are the sex cells (sperm in males, eggs in females).
• Option b: Chromosomes are structures carrying genetic info, not sex cells.
• Option c: Hormones are chemical messengers, not sex cells.
• Option d: Zygotes are formed by the fusion of gametes, not sex cells themselves.

So the correct answer is the one that defines sex cells.

Answer:

a. Gametes.