Answer:
D
) ratio of neutrons to protons in each element.
Answer:
World Health Organisation
Explanation:
"WHO" stands for World Health Organisation. It's an specialized agency of the U.N that is concerned with international public health.
Answer:
a test cross
Explanation:
it determine whether row genes are linked
Answer:Chemical Composition
Explanation:
none of the others make even the simplest of sense.
I would personally say stem cells as your answer.
