These 10 animal facts will amaze you. A polar solvent is a liquid with molecules that have a slight electrical charge due to its shape. For example, water is a molecule with one oxygen and two hydrogen atoms.The two hydrogen atoms are not on opposite sides of the oxygen, but rather at an angle.hese 10 animal facts will amaze you. A polar solvent is a liquid with molecules that have a slight electrical charge due to its shape. For example, water is a molecule with one oxygen and two hydrogen atoms.
1. an example of selective breeding is crossing a poodle and a labor-doodle that have desired traits. usually this is practiced on by plants and animals.
Humans have used selective breeding long before Darwin's Postulates and the discovery of genetics. Farmers chose cattle with beneficial traits such as larger size or producing more milk, and made them breed; and although they may have known nothing about genes, they knew that the beneficial traits could be heritable.