Organs are directly made up of what lower level of cellular organization? a)cells
b) tissues
c) organisms
d) organ systems

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

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Explain the significance of the increased cell specialization of the volvocine line