T F 1. The cell nucleus contains hereditary information called DNA.
T F 2. In the human body, organs are made of groups of tissue that have a specific job.
T F 3. Organ systems are simpler than organs.
T F 4. Three of the major organ systems in the human body are the respiratory system, skeletal system and brain system.
T F 5. In the circulatory system, the heart pumps blood through our nerves.
T F 6. The main job of the skeletal system is to give protection and support.
T F 7. The ends of our bones are covered by a rubbery material called cytoplasm.
T F 8. Skeletal muscles control the digestion of food in our stomach.
Bone marrow Spongy bone compact bone
No comments:
Post a Comment