Difference between revisions of "Reproduction in Animals"
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===About Reproduction in Animals=== | ===About Reproduction in Animals=== | ||
| − | : Most | + | : Most [[animal]]s need two adults to produce [[offspring]]. This is called 'sexual' reproduction. |
| − | : Some | + | : Some [[animal]]s can '''reproduce''' on their own. This is called 'a-sexual' reproduction. |
===Sexual Reproduction=== | ===Sexual Reproduction=== | ||
| − | : Sexual reproduction is when two adults are needed to create one or more offspring. | + | : '''Sexual reproduction''' is when two adults are needed to create one or more [[offspring]]. |
| − | : In sexual reproduction of | + | : In '''sexual reproduction''' of [[animal]]s two adult [[animal]]s will mate. |
| − | : In sexual reproduction the offspring have some of the features of their | + | : In '''sexual reproduction''' the [[offspring]] have some of the features of their [[parent]]s but are not an exact copy of either [[parent]]. |
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===A-sexual Reproduction=== | ===A-sexual Reproduction=== | ||
| − | : A-sexual reproduction is when one adult creates one or more offspring without needing another adult. | + | : '''A-sexual reproduction''' is when one adult creates one or more [[offspring]] without needing another adult. |
| − | : In a-sexual reproduction the offspring are exactly the same as the parents. | + | : In '''a-sexual reproduction''' the [[offspring]] are exactly the same as the parents. |
Latest revision as of 10:32, 10 June 2019
Contents
Key Stage 2
Meaning
Reproduction in animals is when one or two animals produce offspring.
About Reproduction in Animals
- Most animals need two adults to produce offspring. This is called 'sexual' reproduction.
- Some animals can reproduce on their own. This is called 'a-sexual' reproduction.
Sexual Reproduction
- Sexual reproduction is when two adults are needed to create one or more offspring.
- In sexual reproduction of animals two adult animals will mate.
- In sexual reproduction the offspring have some of the features of their parents but are not an exact copy of either parent.
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| When amphibians mate the female lays eggs and the male gives out sperm to fertilise the eggs. | When birds mate the male puts sperm inside the female and then the female lays eggs afterwards. | When fish mate the female lays eggs and the male gives out sperm to fertilise the eggs. |
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| When some insects mate the male puts sperm inside the female and then the female lays eggs afterwards. | When mammals mate the male puts sperm inside the female and then the female becomes pregnant. She then gives birth to the offspring. | When reptiles mate the male puts sperm inside the female and then the female lays eggs afterwards. |