JO Science/Health 8 - 12808-00001 - Per 3 / Module 08 The Earth
1.(03.01 LC)
Which of these is a characteristic of index fossils? (7 points)
Found in the topmost rock layer
Found in many layers of the same rock
Have already established relative age
O Are limited to a particular geographic location
2. (03.01 MC)

oak trees? ? what was listed

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

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:

substitution is the answer in this case