If its to a child, I would say an egg cell.
But, any of these cells can mutate.
Answer:
Explanation:
a fungus named penicillin produces a substance that kills the bacteria near it. The mold produces the antibiotic penicillin. How do fungi help plants grow? The hyphae spread underground and absorb water and nutrients from the soil for the plant.
The birds are unable to get calcium from the soil because the calcium has been leached out by the acid rain.
Answer: A. Homologous structures occur in each fossil
Explanation: source: trust me broski
(Actually though trust me)