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Metamerism can be divided into two main categories:
- homonomous metamery is a strict serial succession of metameres, of which, in fact, there are no true examples in the invertebrates; however, the Annelida worms, e.g., earthworms, are used as a model to portray homonomous metamery.
- heteronomous metamery is the condition where metameres have grouped together to perform similar tasks. The extreme example of this is the insect head (5 metameres), thorax, and abdomen, where the segments are only as regards structures not crucial to specific segment function (e.g. ladder nerve system or somites).
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Which phylum shows metameric segmentation?
Annelida shows metmerism .
Which phyla has metameric segmentation in the body of animals?
Metameric segmentation is a characteristic feature of the phylum Annelida, which includes segmented worms such as earthworms and leeches. These animals have a linear series of body segments that are repeated along the length of their body.
What is metameric?
If an organism is "metamerically segmented", it is composed of many connected parts which are very similar in structure. For example, an earthworm is metamerically segmented, because if you look at it you can see lots of little rings. Check the Wikipedia page on "Metamerism" for more information.
State the advantages of metameric segmentation in Annelids?
Annelids is one type of worm, their long and moist body composed of many internal organs that are duplicated all times. Well, by having metameric segmentation, they can still survive if one other segment damaged or injured.
What makes an annelid an annelid?
Distinguishing characteristics of the phylum annelida are conspicuous metameric segmentation, they are triploblastic, coelomate, bilaterally symmetrical, tubular bodies (worms), they have a nervous system and some sense organs
Examples of Market segmentation?
The types of maket segmentation are, demographic, geographic, psychographic, and behavioral.
What is meant by metameric segmentation?
In biology, metamerism is 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.
What is metamerically segmented?
If an organism is "metamerically segmented", it is composed of many connected parts which are very similar in structure. For example, an earthworm is metamerically segmented, because if you look at it you can see lots of little rings. Check the Wikipedia page on "Metamerism" for more information.
What is the segmentation for cnidarians?
Segmentation is absent in them .
What is hybrid segmentation of market?
segmentation is a creative prcess. marketers normally segment markets by combining several segmentation variables rather than relaying on a single segmentation base. THERE ARE 4 METHODS OF HYBRID SEGMENTATION * Value and Life Style (VALS) * psychographic-demographic segmentation * geo-demographic segmentation * yankelovich's mind base segmentation
What segmentation does mollusca have?
No Mollusc has any segmentation.
What is physiographic segmentation?
Psychographic segmentation is segmentation that uses consumer lifestyles to divide markets. Psychographic segmentation includes segments based on lifestyles, loyalty, and usage.
