Hi there!
Explanation: Pathogen is an agent that can cause infection and disease.
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Hypnotic is your answer, ypnotic drugs induce sleep and are used to treat insomnia. Insomnia is a change to the normal sleep pattern, due to difficulty in either getting to sleep or maintaining sleep.
They go on the first level of the pyramid!! Hope that this helped
When you're aroused, tubes called the vas deferens squeeze sperm<span> from the testes toward the back of the urethra. The seminal vesicles also release fluid there.
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