Answer:
deoxyribonuclei acid ,DNA
Explanation:
the chromosome is wrapped around the DNA
Answer:
I think it's because it will decay and be soil and soil is biotic factor
<span>The smell of Danger.
Researchers have discovered a single compound found in high concentrations in the urine of carnivores that triggers an instinctual avoidance response in mice and rats. This is the first time that scientists have identified a chemical tag that would let rodents sense carnivores in general from a safe distance.</span>
