I will give brainliest for the best answer

Well, I think the best answer will be is How the environment has changed over time, and How life forms in a certain environment have changed over time. Because how the earth surface has changed over time, Because its kinda true but not really. And how the surrounding rock layers have changed over time, Its not really true because the environment change in a certain times of forms of life. Good Luck!

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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mark brainliest and have a great day!

it creates acid rain