Bio You are riding a bike:
How is the oxygen being used to create energy?
How is the food you choose to eat used to create energy?
Is any stored form of energy going to be converted and, if so, to what?

answer; /// i believe the correct answer is (thrombocytopenia); (a)

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck

not sure if this is what you'r looking for eubacteria and archaebacteria

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.