• What chemical substances must be exchanged between each organism and its environment?

answer; polycythemia is the correct answer;

haploid cells;

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!