A fossils can’t form underwater because of how much oxygen can be found in the water.
Fossil 3rd one
Homologous: 4th
Vestigial: 1st
DNA: 2nd
Answer:
The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
Explanation:
The answer is any cell from the same organism.
Bacteria is used to produce human insulin