The endosymbiotic theory is our best model for how eukaryotic cells got their mitochondria and chloroplasts. If some other organelles also existed as free-ling prokaryotes, what advantages might proto-eukaryotic cell have gained by endosymbiosis with them? Discuss two different membrane-bound organelles in your answer to get full points.
to de relate why proteins are the best suited to do all the work of the cell.

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 answer to your question is tooth decay.