All cells have

an outer membrane or plasma membrane
cytoplasm
a cell wall
a nucleus
protoplasm
large vacuoles
chloroplasts

Apea plant that is heterozygous for the tall phenotype can produce short offspring when self pollinating. which of the following explains why this occurs? a. segregation of allels b. condominance of traits c. polygenic expression of traits d. independent assortment of alleles

What characteristic makes a cell membrane selectively permeable

Which elements are in the substance that makes up about 60% of the male human body