Cell phone use is very high by many people of all ages, a relatively recent behavior. Cell phones emit radiation in small amounts, which cells can absorb. Some recent research studies show this radiation may be causing health risks related to changes in DNA. Do you think people should be more careful with cell phone use? What are the pros and cons of having a cell phone with you at all times?

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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