Friction always works in the …………. Direction of motion of the surface.

Which description best defines the nervous system and its two main branches? a: the message center of the body, split into the autonomic nervous system and the somatic nervous system b: the control panel of the body, split into the central nervous system and the exterior nervous system c: the message center of the body, split into the central nervous system and the peripheral nervous system d: the control panel of the body, split into the brain and the spinal cord

How long does it take to recover from heat stroke

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation