Help quickkk Which statement correctly describes an ectotherm?
A
An ectotherm uses body heat to regulate its body temperature.
B
An ectotherm generally has very high metabolism, which generates body heat.
С
An ectotherm relies on insulating body coverings, such as fat and hair
D
An ectotherm exchanges heat with the environment to regulate body temperature.

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.