Through what process can scientists artificially change the DNA code of organisms? A) natural selection
B) gene pool
С) gene shuffling
D) genetic engineering

D) Genetic engineering

Explanation:

It makes the DNA living organisms

it is either c or d and i know for sure it is not a or b

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.