Question 5 of 25 How did scientists obtain environmental DNA (EDNA) from carp in the
waterways near Chicago?
A. They extracted DNA directly from the wastes of the fish.
B. They captured carp and extracted DNA directly from the fish.
O
C. They collected carp eggs, from which they extracted DNA.
D. They collected water samples and isolated DNA the fish had left
behind.
SUBMIT

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.