Which part of a cell allows nutrients and other materials to enter or leave the cell

What element is able to combine with itself and hydrogen to form large molecules ?

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f

What do we call an individual that has inherited two identical alleles for the same trait? a.homozygous b.heterozygous c.monozzygous