Sporadic cancer:
a. occurs during one's lifetime
b. occurs in somatic cells
c. affects all cells in the individual
d. a and b only
e. a, b and c

d) A and B only

Explanation: Sporadic cancer is the form of cancer that is usually caused in those people who don't have a history of cancer . It can also occur while their DNA has got changed in certain way. They reason of cancer is due to exposure in harmful environment, diet factors, hormone effects and other factors also in the genes that damage them. They also can appear in the somatic cell. Therefore the correct option is only (a) and (b).

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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explanation:

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