Rem sleep is paradoxical because:
a. the skeletal muscles remain active, but the brain is inactive.
b. the brain is less active than it is during other sleep stages.
c. the brain is active, but the major skeletal muscles are paralyzed.
d. both the brain and the body are inactive.

What is the similarities and differences between bacteria and eukaryote?

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.