Which of the following is a characteristic of compounds but not of mixtures
a.) retention of the properties of the original elements
b.)not easily separated
c.) not created by a chemical reaction
d.) involve blending but not bonding

The chemical form of energy that is useable by the cell to do work

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

What is the key to the recognition of codominance?