Question

1. which statement about fertilization strategies is true?

a. internal fertilization mostly occurs in fish and amphibians.
b. internal fertilization results in eggs that develop outside the females body.
c. external fertilization is common for animals that live in water.
d. external fertilization occurs in all land animals.

Explanation:

• Option A: Fish and amphibians mostly have external fertilization, not internal.
• Option B: Internal fertilization results in eggs that develop inside the female's body (in some cases like live - bearing animals) or are laid after fertilization (like in birds).
• Option C: External fertilization is common for aquatic animals as the water provides a medium for sperm to reach eggs.
• Option D: Land animals mostly have internal fertilization.

Answer:

C. External fertilization is common for animals that live in water.