Selectively permeable membranes allow only certain materials to pass
through them. t/f?

How is an environment able to support different varieties of organisms?

Which codon is the code for the amino acid histidine (his)?

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.