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.
Annelida shows metmerism .
No Mollusc has any segmentation.
they are metameric beings (segmented body), they have anexoskeleton made of chitin and they present articulated limbs.
Simply, without segmentation, organisms would lack means of movement, complex structure, advanced functions, and organ protection.
It allows for the specialization of different areas (segments) of the body
Annelida shows metmerism .
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.
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.
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.
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
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.
Segmentation is absent in them .
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
No Mollusc has any segmentation.
Psychographic segmentation is segmentation that uses consumer lifestyles to divide markets. Psychographic segmentation includes segments based on lifestyles, loyalty, and usage.
Not Pseudosegmentation, Exactly true-segmentation.
Market segmentation