what is metamerism ? how to remember it's examples ?
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Earthworms are a classic example of biological homonymous metamery – the property of repeating body segments with distinct regions
In biology, metamerism is the phenomenon of having a linear series of body segments fundamentally similar in structure, though not all such structures are entirely alike in any single life form because some of them perform special functions.[1] In animals, metameric segments are referred to as somites or metameres. In plants, they are referred to as metamers or, more concretely, phytomers.
Earthworms are a classic example of biological homonymous metamery – the property of repeating body segments with distinct regions
In biology, metamerism is the phenomenon of having a linear series of body segments fundamentally similar in structure, though not all such structures are entirely alike in any single life form because some of them perform special functions.[1] In animals, metameric segments are referred to as somites or metameres. In plants, they are referred to as metamers or, more concretely, phytomers.
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Different compounds with the same molecular formula and the same functional having unequal distribution of carbon atoms on either side of the functional group is called metamerism and the isomers are known as metamers. For example, Ethoxyethane
(CH_3 - CH_2-O-CH_2 CH_3) and methoxypropane (CH_3-O-CH_2 - CH_2 - CH_2) have the same molecular formula C_4 H_10O and the same functional group ether but have different distribution of carbon atoms attached to etheral oxygen. These are metamers of each other.
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