When scientists analyze a rock for its age they are able to determine what events occurred and how it affected life. what do scientists deduce from this? a. over time life on earth has changed b. that life on earth has stayed the same c. determine which fossils are more dense d. determine soil settling rates on earth

the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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it's anything that aren't producers and consumers.

explanation:

you've got to be clear on what "this" is