Difference between revisions of "Variation"
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| style="height:20px; width:200px; text-align:center;" |The pattern on the backs of frogs shows '''variation'''. | | style="height:20px; width:200px; text-align:center;" |The pattern on the backs of frogs shows '''variation'''. | ||
| style="height:20px; width:200px; text-align:center;" |'''Variation''' in patterns on snail shells means some are better camouflaged than others. | | style="height:20px; width:200px; text-align:center;" |'''Variation''' in patterns on snail shells means some are better camouflaged than others. | ||
| + | |} | ||
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| + | ===Examples of Environmental Variation=== | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:VariationMice.png|center|200px]] | ||
| + | |[[File:VariationTwins.png|center|200px]] | ||
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| + | | style="height:20px; width:200px; text-align:center;" |These mice are identical twins, but one has damaged its tail. The difference is an example of '''environmental variation'''. | ||
| + | | style="height:20px; width:200px; text-align:center;" |One of these identical twins has decided to grow a mustache the other has decided to shave completely. This is '''environmental variation'''. | ||
|} | |} | ||
Revision as of 17:43, 29 August 2018
Contents
Key Stage 2
Meaning
Variation is the difference between living creatures.
About Variation
- There is variation between different species; different species look different from each other.
- There is variation within a species, creatures of the same species don't look exactly the same as each other.
- Variation is useful to help a species survive. If everyone was the same, what kills one person might kill everyone.
- Variation within a species can be inherited or caused by the environmental. Some people are born with 3 fingers (inherited variation) but others might lose fingers in an accident (environmental variation).
Examples of Inherited Variation
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| Eye colour varies from person to person. | The pattern on the backs of frogs shows variation. | Variation in patterns on snail shells means some are better camouflaged than others. |
Examples of Environmental Variation
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| These mice are identical twins, but one has damaged its tail. The difference is an example of environmental variation. | One of these identical twins has decided to grow a mustache the other has decided to shave completely. This is environmental variation. |