Answer:
an agent that causes a mutation in DNA
Explanation:
A chromozome is a long, stingy aggregate of genes that carries heridity information.
Answer:
The rate of a reaction is the speed at which a chemical reaction happens. If a reaction has a low rate, that means the molecules combine at a slower speed than a reaction with a high rate.
Answer and Explanation:
Density-dependent factors include competition, predation, parasitism and disease. When organisms are densely populated, they can easily transmit parasites and diseases to one another through contact with skin and body fluids. Disease is spread quickly through densely packed populations due to how close organisms are to one another. All these factors can affect the volume of a population. Predation affects population because the predators feeds on the prey by killing it.
Answer:
A
Explanation:
These are the correct layers in order of increasing altitude.