Answer:
1. 20 different amino acids.
2. Genes
3. nucleotides
4. uracil
Explanation:
Answer:
C
Explanation:
It's pretty simple really, just find the <em>Benefit</em>. Pollution is definitely a harmful effect, disease is also not a benefit, and depletion of fish population is bad, so easing demand on commercial fisheries is the answer
Explanation:
The role of active cytotoxic T cells is to attack <u> </u><u>body cells that have been infected</u>
