The precambrian era makes up about 90% of the earths history, but there was little to no living organisms at the time other than microscopic ones. The first eukaryotes were found in the cambrian period after the precambrian period, not only that but at the end of the precambrian era in the Proterozoic era there was a mass extinction of about 70-80% of all living organisms
What happens to the population density and competition if the birth rate decreases?
The birth rate would increase is the population density competition increased.
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Answer:food undergo a chemical reaction by bond breaking example for starch to amylose is hydrolysis reaction where there is breaking of 1,4 glycosidic bondd
Proteins.......................
Answer:
Dogs because they are really more friendly than cats.
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