Answer:
Tt. TT
Explanation:
those are the only two possible, unless tall is a recessive trait, then it's tt
<span>Ancient cultures knew that unseen energy flows through all living things. Reiki is a system of healing that channels this energy by placing the hands. In recent scientific experiments, medical doctors are studying the correlation between this energy and the functioning of the immune system.</span>
The answer is mitochondrion, it is called as "the power of cell"
The two substances that scientists use are
carbon-14 and carbon-12