Which applies to the collision theory?
a. particles need to collide in order to react.
b. particles may obtain successful collisions in any molecular orientation.
c. temperature increase causes kinetic energy of particles to decrease.
d. reactions do not have to begin with collision of molecules or particles.?

If you answer this i"ll give you brainiest and all these points me if you do i love you 7. a doctor is at work taking care of sick patients. she spends a few minutes trying to figure out why a particular patient is sick. she taps the patient's knee to test his reflexes. while she is examining him, the patient coughs on her. a) describe the function of the skeletomuscular system in this situation. (3 points) b) describe the function of the circulatory and respiratory systems in this situation. (3 points) c) describe the function of the immune system in this situation. (3 points) d) describe the function of the nervous system in this situation. (3 points) e) describe one way that any two of the doctor's body systems worked together in this situation. (3 points)

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Diagram of the evolution of land plants?