Which of Charles Darwin's main points is depicted in the image?
Organisms within a population compete with each other to survive.
Over time, beneficial variations will be passed on to future generations.
More offspring are produced than can be supported by an environment.
All organisms within a population have an equal chance for survival.

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.