Its 3 of the same molecule.
it is trapped beneath non porous rocks
Explanation:
Amino acid is made of an Amino group , a Carboxyl group And an R group . there is also an additional H there .
Answer: B
Explanation: Researchers have induced differentiating cells to revert to being stem cells. According to Spradling, it has long been known that some specialized, or differentiated, cells in the body can revert to become stem cells to regenerate tissue under particular conditions