The answer is a germline mutation.
The germline mutation is heritable variation in the lineage of <span>germ cells. Germ cells are cells that give rise to the gametes, so a mutation in germ cell will be seen in a sperm cell but not in a skin cell.</span>
Answer: Hetrotypes are organisms (anything that lives) that can make it's own energy without absorbing it from other organisms. Example: Flowers, they get there energy from the sun, not from eating and absorbing other organisms.
Explanation:
I believe the answer is b.
The first one since your doing on the whole neighborhood and not just that one location. You need find the average soil quality and so you need to sample 10 different locations in that neighborhood.