In the scenario above, Red hair (R) is dominant to blonde hair (r). If two parents are heterozygous for red hair, what percentage of their offspring will have red hair and what
percentage will have blonde?

75% of the offspring will have red hair and 25% will have blonde hair.

Explanation:

Since red is dominent but heterozygous it will be represented like Rr. Since both parents have that put it on a punnet square to get 75% red and 25% white.

i don't know what the picture looks like but i can take a guess and say maybe basidiomycetes?

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick