The pyruvic acid will be broken down further in which step of cellular respiration?

Glycolysis

Explanation:

Although glycolysis does not require oxygen, when inadequate oxygen is available to the mitochondria, some of the pyruvic acid does not enter the mitochondria, but rather breaks down into lactic acid, a process known as fermentation.

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:

the correct answer is b