material consists of erupted magma that solidifies as it travels through the air as well as existing rock that is shattered by powerful eruptions.

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

How can you tell the difference between rough er from smooth er?

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16