Internal v. External Fertilization

Front

What is internal fertilization?

Back

A reproductive process where fertilization occurs inside the female body.

Front

What is external fertilization?

Back

A reproductive process where fertilization occurs outside the female body, typically in water.

Front

Where does fertilization occur in terrestrial development?

Back

Inside female body.

Front

How many eggs are typically produced in internal fertilization?

Back

A small number.

Front

Why do animals that use external fertilization produce a large number of eggs?

Back

To increase the chances of survival due to low survival rates.

Front

Where does the embryo develop in external fertilization?

Back

In water.

Front

What is the main advantage of internal fertilization?

Back

Higher chances of survival for the developing embryo.

Front

What is a disadvantage of external fertilization?

Back

Lower survival rates due to environmental factors.

Front

Give an example of an animal that uses internal fertilization.

Back

Humans.

Front

Give an example of an animal that uses external fertilization.

Back

Frogs.