B. The top image is in test 1, and the bottom image is in step 3.
submitted review and got it right
My answer would most likely end up being D.
Comparative and experimental investigations are two of three scientific investigations, the other is descriptive investigations.
--hope this helps--
The correct answer is 2.
A mutation can only be passed on to offspring if it occurs in the sex cell of the parent, which is what then forms the offspring. This renders all the other answers incorrect, because they do not happen in the gametes of ovaries or testes (the sex organs of females and males, respectively).
