Which of the following statements about matter is true? mass and matter are always the same. matter is made up of atoms and has mass. mass can decrease while matter increases. matter does not exist in the biosphere.

What makes a dominant allele different from a recessive allele

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

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient