What are the components of the cns? what is the function of each?

Two main component of Central nervous system are brain and spinal cord.

Brain:

Brain acts as the main coordinating center of the body. The brain is protected in the skull. The brains control the emotions, thought process and learning memory of the organism. The brain interprets the information received by the five different sense organs.

Spinal cord:

The spinal cord is involved in the reflex action of the body. Spinal cord is involved in the somatosensory organization of the body. The motor pathways are originated from the spinal cord. Body's proprioceptive information travels through the spinal cord.

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there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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