Can someone help me answer this please

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?