Question | Answer |
What is the circulatory system? | a MUSCLE that pumps blood through blood vessels |
What are the organs of the circulatory system? | (5) heart, arteries, capillaries, veins, blood |
What is the function of the circulatory system? | to transport oxygen and nutrients to cells |
What is the function of the respiratory system? | to take oxygen from the air (through the mouth) and rid the body of carbon dioxide |
What are alveoli? | tiny air sacks that take carbon dioxide out of our body |
What do nephrons do? | transport water and urea to the ureters and then to the bladder |
What does the stomach do? | stores food, breaks food down to liquid, then slowly emties the liquid mixture into the small intestine |
What are villi? | tiny tubes sticking out of the walls of the small intestine |
What does the nervous system do? | Connects your tissues and organs to your brain |
Essay: What does blood do? | transports oxygen and nutrients through the body and gets rid of waste |
Essay: Compare the organelles in a cell to the organs in your body. | they both have specific jobs to perform |
Essay: How do your receptors keep you safe? | they move your hand like when you touch a hot stove |
Essay: Compare animal and plant cells. | plant cells are surrounded by a rigid cell wall and they also have chloroplasts, which make food |