When aroused, your heart rate increases, your pupils dilate, and you may sweat, indicating activation of the part of your nervous system called:

The relationship between intron and exon

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.

Define adaptation. why do organisms adapt? give an example.