It produces new, organic, rich soil, that can contribute to agriculture and farming, as well as the decomposers that live in them. It is very good to compost.
The percentage of alleles for homozygous recessive would be 50%
The cavity of right ventricle is larger I believe. This is due for the fact that the left ventricle is thicker in muscle so may have a smaller cavity. I’ve also performed dissections lol.