They can be helpful by testing back dna back to other ethnicity tests and it can be helpful tools for people in the medicine field.
Mutation is random because there is really no way of knowing whether a child will inherit it, whereas natural selection is predisposed in either parent.
Well all of these impact birds but go with A since insecticides can damage birds eggs and makes them weak
Answer:Well Its basically destroying whatever habitat had formed there. Anything living on the surface of the grace would be dead. Bees would now longer visit since there is a cut in pollen count. The only organisms the yard might support well them
Explanation:
Mix the cold ice water with the warm salty water