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100
Which can muscle cells form? A. blood cells & bone cells B. bone cells and cardiac muscles C. cardiac muscles & skeletal muscles
What is C. cardiac muscles & skeletal muscles
100
Which is true of nerve cells, or neurons? A. they are only found in the spinal cord B. they are also called connective tissue C. they are in the nervous system
What is C. they are in the nervous system
100
What is digestion? A. what happens in the heart and lungs B. making sure the body has enough oxygen C. the process of breaking food into a form cells can use
What is C. the process of breaking food into a form cells can use
200
Which are the jobs of the skeletal system? A. makes calcium, fights disease B. helps you move, protects your organs C. helps you breathe, make your heart beat
What is B. helps you move, protects your organs
200
Which tells what the brain does? A. brings oxygen to the blood B. helps support the body C. sends messages to body system
What is C. sends messages to body system
200
Which are organs of the digestive system? A. esophagus, small intestine B. spinal cord, large intestine C. voluntary muscles, stomach
What is A. esophagus, small intestine
300
Which of these kinds of muscle is voluntary? A. heart B. skeletal C. breathing
What is B. skeletal
300
Maria was ill with measles when she was younger. Why will she not get the disease again? A. she has built up antibodies to measles B. she has developed pathogens that protect her C. she will no longer let measles enter her body
What is A. she has built up antibodies to measles
300
Which describe the path of air through the body after it enters the nose or mouth? A. from bronchial tubes, to trachea, to lungs B. from pharynx, to trachea, to bronchial tubes C. from trachea, to bronchial tubes, to pharynx
What is B. from pharynx, to trachea, to bronchial tubes
400
How does a pair of skeletal muscles work together? A. both muscles contract at the same time B. when one muscle contracts, the other relaxes C. when one muscle is voluntary, the other is involuntary
What is B. when one muscle contracts, the other relaxes
400
How are viruses and bacteria different? A. viruses are much smaller than bacteria B. viruses cure illness, and bacteria spread illness C. bacteria is an antibody, and a virus is a pathogen
What is A. viruses are much smaller than bacteria
400
Which important discovery did Alexander Fleming, make? A.the first vaccine B. the first pathogen C. the first antibiotic
What is C. the first antibiotic