If adenine and thymine are complimentary pairs, and we're finding how many thymine there should be in the case that there are 36 adenine bases, there would be 36 thymine bases.
1) the manipulative variable is the salt
2) the responding variable is how many purple eggs hatched
3) beaker A was the controlling variable
It is 200 million years because it has been around for a long time.
The correct answer is that the yolk provides nutrients for the embryo. Hope this helps.
