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12 Cards in this Set
- Front
- Back
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What is bacteria?
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one-celled living things
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What is a virus?
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a tiny particle that can reproduce only inside a living cell
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What do white blood cells do?
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they are cells in the blood that fight bacteria and viruses
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What is an antibody?
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a chemical made by the immune system to fight a particular disease.
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What is immunity ?
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the body's ability to fight disease caused by germs.
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What is a vaccine?
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a medicine that causes the body to form antibodies against a certain disease
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What is the epidermis?
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the outer layer of skin
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What is melanin
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A substance that gives the skin color
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What is a gland?
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a part of the body that makes substances the body needs
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What is the dermis?
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the layer of skin just below the epidermis
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What are nerve cells?
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cells that carry messages to and from all parts of the body
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What is a pore?
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a tiny opening in the skin
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