2) what portion of the cell is absent in rhizopus stolonifer with the exception of the reproductive cells?

Septa and the internal crosswalls.

Explanation:

Rhizopus stolonifer, also known as the black bread mold, is a fungus in the Mucoraceae family that causes soft rot in plants and fruits. This fungus is widely distributed worldwide and can often be viewed on bread and lemon surfaces. Unlike most fungi, Rhizopus stolonifer's cells lack the septa and the internal crosswalls.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.