I think that c)3rd is the correct answer
"N<span>eurula stage" is the stage among the following choices given in the question that is the stage of the embryo Jim was watching. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that has actually come to your great help.</span>
Answer:
3rd one
Explanation:
because only DNA contain thymine and in RNA it contains uracil.
Chapter nine,section 5 in your textbook page 149
The process is called ovulation
