Cells, tissue, organs, organ systems, and organisms.
Plants have a cell wall and chloroplasts; animal cells do not have either
Hope this helps : )
Answer:
A:T;G:C
Explanation:
adenine goes with thymine unless it's mRNA and it will go with uracil. guanine and cytosine always go together.
The answer to the question above is letter a. melting.
>Exothermic is the giving off heat energy the transfer of energy to the surroundings.
>In exothermic reaction, the energy is
usually transferred as heat energy
<span>> Other example of exothermic is combustion</span>