T Activity: The Precambrian Earth 7 of 8
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Question 2
The arrows in the diagram show continuous, cyclic movements from one subsystem to another without an end. Reflect
upon your previous answers and knowledge of Earth's subsystems to determine whether the arrows in the diagram best
represent matter, energy, or both. Explain your answer and provide at least one example that occurred during the
Precambrian era.
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It would be both since it involves energy and that energy can afect the matter as well, energy flows through everything and almost everything
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is mass.
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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 second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus