A single species evolved over time into two species, each on opposite sides of Grand Canyon. This change was most likely due to

What is earths lithospheric plates interact at

Witch type of microscope is used to view very small cell components like proteins and dna?

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping