Gavin conducted a mineral identification experiment with an unknown mineral. He found that the mineral looked black, had a black streak, would fracture, and was metallic. Which mineral did Gavin most likely find? magnetite O biotite hematite O graphite

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.