All human body systems are capable of communicating. there is one system; however, that is the master communicator. in fact, this system is capable of communicating with almost every cell in the human body and controls most other body systems in some way. what system do you think fits this description? explain your reasoning.

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables