Identify the transformations of energy that take place in the diagram. assume the girl in the diagram eats corn to gain the energy to ride the bike.

1. the is the thinnest part of the earth. 2. the is the thickest part of the earth. 3. what metals are mentioned in the text?

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

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