Complex organisms contain different levels of organization that work together to maintain homeostasis. Which statements correctly describe the roles of stem cells in maintaining a complex organism? Select ALL that apply. A An adult red blood stem cell can easily differentiate to become a nerve cell. B Stem cells are unspecialized cells that can become specialized during differentiation. C Stem cell differentiation is the only process needed to maintain a complex organism. D Stem cells become differentiated based on the different genes inherited by the organism. E Adult stem cells can replenish themselves with identical copies formed during cell division. F Adult stem cells are totipotent cells that can differentiate into any cell type needed for repair.

amber has allowed scientists to study dna that has been preserved over millions of years.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

if someone had the list of traits you provided