Which statement is true about DNA and evolution? ---
a.) Two species that have the same DNA provide evidence that evolution has taken place.

b.) Each living species has DNA made from different components, showing that organisms have evolved.

c.) Two species with very similar DNA likely evolved from a common ancestor.

d.) DNA from related species is identical, providing evidence that all organisms have evolved in the same way

Which chemical equation is unbalanced? which chemical equation is unbalanced

How energy move through ecosystem ?

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.