Question

How do large numbers of frog's eggs relate to the frog's fitness for life in water?

Answer 1

A male frog sheds millions of sperm and female shed 2,000 to 3,000 in the water, with these numbers the survival rate increases. In water the eggs and sperm are small making them victims to be eaten by other animals, having this amount of egg and sperm increases the chance of having offspring.

Answer 2

Answer:

• Because most of the eggs won't survive, a frog's ability to lay a huge number of eggs indicates how well-adapted the frog is for life in water.
• This is so that the frog can leave them. The chances of the offspring are enhanced because there are more eggs.
• External fertilization, or fertilization that occurs outside the body, is the form of fertilization that occurs in fish and frogs.
• Water is used for fertilization in frogs and fish. Because sperm must come into contact with the egg by the movement of water, there is a probability of fertilization.
• Thus, in order to overcome the chance factor (sperm coming into contact with egg) and generate progeny, fish and frogs produce enormous numbers of eggs each year.

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