Explain why and how the polar covalent bonds found in water molecules are responsible for water's ability to dissolve many substances, particularly
ionic compounds such as salt.

What is a group of organisms that are closely related and share similar characteristics

What is the difference between a meteoroid and a meteor?

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.