9th grade biology giving brainist to first answer

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

What was the land like over 500 million years ago? what was under the sea?