Two groups of students were tested to compare their speed at working math problems. Each groups was given the same problems. One group used calculators and the other group computed with out calculators. What are 2 constants and the control group?

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.

Organelles found in plant cells that function through photosynthesis to produce glucose from carbon dioxide and water are called — question 21 options: chloroplasts guard cells photosynthons

Your sense of touch depends upon: a. direct contact b. heat chemical c. reactions d. pain