Ascientist investigates two types of cells located in different parts in the human body. cell a contains many more mitochondria than cell b. what is the best conclusion to make from this observation? a. cell a has a stronger cell wall than cell b. cell a is located in a bone, and cell b is located in the heart. c. cell a produces less energy than cell b. d. cell a is part of an organ that does more work than cell b.

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.