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Biology
9. Reproduction in Animals
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Q42 of 100 Page 161

Give two differences between a zygote and a foetus.

(i) Zygote is made up of a single cell while foetus is made up of many cells.

(ii) Zygote is formed by the fertilization of sperm and ovum, foetus is formed by the repeated divisions of the zygote.


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Why do female frogs (or female fish) lay hundreds of eggs?

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Draw a labeled diagram of the human male reproductive system.

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9. Reproduction in Animals
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