The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of? Group of answer choices

carbohydrates

proteins

lipids

nucleic acid

What is the function of the somatic nervous system? connects the brain and the spinal cord to the rest of the body carry signals to the muscles and glands includes all nerves controlling the muscular system and external sensory receptors controls internal organs like the heart and bladder

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?