"over the past few decades, researchers have observed declining numbers in two species of penguins native to the west antarctic peninsula. new evidence is pointing to a decline in their food supply as the primary cause for the recent drops in their numbers. these penguins feed on krill, small animals that grow and develop under ice masses. the graphs below show data related to two factors: atmospheric carbon dioxide (co2) levels and antarctic ice mass. the diagram of a generalized antarctic food web illustrates the role of the penguins.

explain why the change in ice mass is resulting in a decline in the penguin populations."

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

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: