Answer:
B: sample 4
Explanation:
This is because amino acids are basic units for proteins
B) 60° north latitude and 0° longitude
Cancer is a mutation that occurs during the cell cycle, usually when it develops and grows it means the mutation was able to go through the cycle undetected at checkpoints so the cell was not destroyed by the lysosomes.
B. Sunlight doesn't reach the bottom of lakes..
Increased use of antibiotics since the few that are immune will survive and reproduce and will out grow others that arent.