Table of Contents
What is meant by metamerism Class 11?
Metamers are the isomers having the same molecular formula but different alkyl groups on two sides of functional groups. This phenomenon of isomerism is called metamerism. In these molecules, the divalent oxygen or Sulphur atom is surrounded by alkyl groups.
What is metamerism in zoology?
Metamerism. n., plural: metamerisms. [mɪˈtæməˌrɪzəm] Definition: a linear series of body segments.
What is metamerism Class 11 zoology?
Metamerism is the phenomenon of forming a linear series of body segments that are similar in structure. A metameric segment is also called as somite.
What is metamerism Class 9?
Metamerism is the phenomenon of forming a linear series of body segments that are similar in structure.
What is metamerism in BYJU’s?
It is a type of isomerism in which compounds having the same molecular formula but different alkyl groups on either side of functional groups are called Metamerism.
What is metamerism 12th class?
Solution 2 Metamerism (positional isomerism): Ethers having same molecular formula but different alkyl groups attached on either side of the oxygen atom are called metamers of each other. This phenomenon is called metamerism (positional isomerism).
What is the example of metamerism?
Diethyl ether and methyl propyl ether are examples for metamerism. Both have same molecular formula but different alkyl groups on the sides.
What is notochord 11?
Notochord is a solid, cylindrical, rod like structure formed of vacuolated cells present in the mid dorsal body axis of the chordates present at some stage of their life history.
What is Tagmatization in zoology?
The evolutionary process of grouping is called tagmosis (or tagmatization). The first and simplest stage was a division into two tagmata: an anterior “head” (cephalon) and a posterior “trunk”. The head contained the brain and carried sensory and feeding appendages.
What is segmentation and metamerism?
segmentation, also called metamerism, or metameric segmentation, in zoology, the condition of being constructed of a linear series of repeating parts, each being a metamere (body segment, or somite) and each being formed in sequence in the embryo, from anterior to posterior.
What is meant by metamerism?
Metamerism is a psychophysical phenomenon commonly defined incorrectly as “two samples which match when illuminated by a particular light source and then do not match when illuminated by a different light source.”. In actuality, there are several types of metamerism, including sample, illuminant, observer, and geometric.
What is the difference between metamerism and segmentation?
As nouns the difference between segmentation and metamerism is that segmentation is the act or an instance of dividing into segments while metamerism is (biology) the segmentation of the body into similar discrete units.
What is Metamerism or segmentation?
Metameric segmentation or metamerism is an architectural body plan in some animals in which the similar body segments and organ systems are serially repeated one after another. The similar body segments are called metameres or somites.