Which statements regarding hypotheses are true?
Check all that apply
Hypotheses are based on observations.
Hypotheses are written when experiments
are complete
Hypotheses are formed from testable
questions
Hypotheses are tested with controlled
experiments

What is the main difference between the central nervous system (cns) and the peripheral nervous system (pns)? .the cns involves the brain and spinal cord, and the pns involves the body nerves. the cns involves the body nerves, and the pns involves the brain and spinal cord. the cns involves sensory neurons, and the pns involves motor neurons. the cns involves motor neurons, and the pns involves sensory neurons.