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Which organ systems help deliver oxygen to body cells? digestive and excretory systems circulatory and immune systems endocrine and muscular systems respiratory and circulatory systems You are so smart! That is Incorrect! When a person’s body needs water, the brain helps maintain homeostasis by sending signals that make the person feel thirsty. perspire. put on a sweater. feel tired. WHOA! Think about it again! Messages are carried back and forth between the brain and every part of the body by respiratory tissue. nerve tissue. the circulatory system. digestive tissue. WOW! YOU ARE DOING GREAT! Nerve tissue carries messages. Quit MONKEY-ING around and THINK about it. Orangutan Head close- up. Discovery Communications, Inc.. 2005. unitedstreaming. 13 February 2006 <http://www.unitedstreaming.com/> Which organ systems help fight disease? excretory and digestive systems circulatory and immune systems muscular and skeletal systems digestive and endocrine systems White Blood Cells are part of the immune and circulatory system. OOPS! I wonder if you plug in your brain if it would help. Click the arrow to try again. Which of the following is NOT a function of the digestive system? keeping the body in a steady internal state eliminating undigested wastes from the body breaking down food into molecules that the body can use absorbing food molecules into the blood Try it Again! Try it Again! Try it Again! The best diet for preventing heart disease and other problems includes only small fruits and vegetables. amounts of fats and sugars. milk, yogurt, and cheese. pasta, bread, and cereal. Which disease is caused by a virus? Tetanus Athlete’s Foot Colds Cancer Great Job! I am going to scream! Can I try again? What organ produces bile? stomach small intestine pancreas liver The liver produces bile. Try Again! Which nutrient is needed in order for all body processes to take place? water vitamins fats carbohydrates YOOOU need to try again! Which of these is NOT a function of the cardiovascular system? attacking disease-causing microorganisms carrying oxygen, glucose, and other needed materials to cells carrying waste products away from cells controlling many body processes by means of chemicals Fantastic! KEEP ON TRYING! Needed substances are carried to the body cells by enzymes blood water food It is a good thing that you get to try again! Blood vessels that carry blood away from the heart are called veins. arteries. capillaries. lymphatic vessels. I think you need to try again! Atherosclerosis is a condition in which blood pressure is consistently higher than normal. muscles in artery walls lose their ability to contact. capillaries widen and release too much fluid. artery walls thicken as the result of a buildup of fatty materials. Right ON! Atherosclerosis can lead to heart attacks. That is Incorrect! Hypertension is a condition in which blood pressure is consistently lower than normal. blood pressure is consistently higher than normal. fatty deposits build up on artery walls. some of the heart muscle dies. Hypertension = High Blood Pressure Think about it and try again! What is the main function of the excretory system? to protect the nervous system to strengthen skeletal muscles to bring oxygen to body cells to collect and remove wastes from the body Excretory System Swim back and try again! Which organ of the excretory system stores urine until the body is ready to eliminate it? urea urinary bladder ureters urethra OOPS! I wonder if you plug in your brain if it would help. Click the arrow to try again. What function do the kidneys perform? eliminate carbon dioxide supply oxygen to body cells eliminate urea and excess water play a role in gas exchange CORRECT! Try it Again! Try it Again! Try it Again! Louis Pasteur demonstrated that killing organisms that cause a disease could prevent the spread of that disease. be accomplished only with antibiotics. be accomplished only with over-the-counter medications. make a person sick with that disease. Great Job! Keep “fishing” for the correct answer. If a person’s pancreas does not produce enough insulin, the person has AIDS. a disease caused by bacteria. diabetes. allergies. Great Job! Don’t be a bug. Try again! A plant cell A neuron A root A protist You know your nerve cells!! It is a good thing that you get to try again! A change or signal in the environment that can make an organism react is called a(n) stimulus. reaction. impulse. response. WOW! You know your stimuli! STOP Go Back Try Again The thick column of nerve tissue that links the brain to most of the nerves in the peripheral nervous system is the brain. spinal cord. cerebellum. cornea. KEEP ON TRYING! The way the endocrine system maintains homeostasis is often compared to a(n) violent thunderstorm that startles people and increases their heartbeat. heating system that turns a furnace on and off to control a room’s temperature. monthly cycle that releases an egg from an ovary. period of human development that takes about nine months to be completed. It is a good thing that you get to try again! The endocrine system acts on the body through chemical products called hormones. blood and saliva. sugars. target cells. Great Job! I think you need to try again! Which organ below connects the mouth and nose to the stomach? trachea esophagus windpipe larynx Yay!!! You are right. The esophagus connects the mouth and nose to the stomach and moves the food by peristalsis. The Human Body 20 min