What are the 22 pairs of homologous chromosomes in human cells called?
a. alleles.
b. karyotypes.
c. autosomes.
d. sex chromosomes.

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called

How do living things obtain phosphorus