The immune response is the body’s reaction to fighting infections and
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Explanation:

The immune response is a defensive reaction against harmful substances, such as viruses or bacteria, which enter the body. The immune response helps protect the body from disease, infection, and cancer.

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how to know you're in love with someone you've just started getting to know can be a bit tricky because — feelings aside — they are technically still a stranger to you. although you might feel the urge to dive in and start professing your undying love for them asap, it's important to remember that it can be easy to confuse feelings of immense attraction with actual love.