7. Why do the Amoeba Sisters consider the mitochondrion a big deal?

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.

Glands that the body deal with stress and respond to emergencies.

Atype of organism that no longer exist on earth is said to be