Differentiate between external and internal fertilization, giving two examples of each.

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Difference between external and internal fertilisation

External Fertilisation Internal Fertilisation

Fertilisation that takes place outside the female body is called external fertilisation. Fertilisation that takes place inside the female body is called internal fertilisation.

Large number of eggs are produced. Less number of eggs or a single egg is produced.

Examples include fish, frog, starfish, etc. Examples include humans, cows, hens, etc.

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Question 09
Differentiate between internal fertilization and external fertilization.

Name two animals for each: (a) Internal fertilization (b) External fertilization

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External Fertilisation	Internal Fertilisation
Fertilisation that takes place outside the female body is called external fertilisation.	Fertilisation that takes place inside the female body is called internal fertilisation.
Large number of eggs are produced.	Less number of eggs or a single egg is produced.
Examples include fish, frog, starfish, etc.	Examples include humans, cows, hens, etc.