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Pertussis<span> is a highly contagious bacterial infection of the lungs.
Answer: P</span><span>ertussis
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Answer:
A neuron is a nerve cell that is the basic building block of the nervous system. Neurons are specialized to transmit information throughout the body.
True.
Your muscles need to gradually adapt to whatever exercise you're doing.
Persons with breathing problems who want to start exercising should consult a doctor.
Answer:
Lymphocytes are cells that circulate in your blood that are part of the immune system. There are two main types lymphocytes: T cells and B cells. B cells produce antibody molecules that can latch on and destroy invading viruses or bacteria.
Explanation:
