Which characteristic best distinguishes glycolysis and the krebs cycle from the electron transport chain?
1. the amount of atp produced
2. the location in which they occur
3. whether glucose is broken down
4. whether they occur in plants or animals

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.