The period during which the presence of stromatolites decline is the Proterzoic period. Stromatolites are widely distributed sedimentary structures consisting of laminated carbonate or silicate rocks, produced over geologic time by the trapping, binding, or the precipitating of sediment by groups of microorganisms, primarily cyanobacteria.
Answer:
B an animal that can live in fresh water
Answer:
the different types of cells we each have since all of us are unique
Explanation:
Cell division is important for many processes such as growth, the healing of wounds, cell repair and reproduction, etc., Not only is cell division play an important role for humans but even for parasites like paramecium. Paramecium use it as a source of reproduction, this action is called binary fission.
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To find an average, add all the terms together and then divide them by the number of terms.
7.1 + 9.8 + 2.3 +8.5 + 7.4 + 5.7 = 40.8
40.8/6 = 6.8.
so yes, the answer is b.
