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Type: Multiple-Choice
Category: Main Idea
Level: Grade 4
Score: 3
Author: jrei5632
Created: 2 years ago

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Main Idea Question

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Grade 4 Main Idea

Your immune system is what keeps you from getting sick. It is made up of two different types of white blood cells. Phagocytes fight off invading germs. Lymphocytes remember the germs so they can be more easily fought next time. Together they do their best to keep you healthy.

What is the main idea of this passage?
  1. White blood cells are part of the immune system.
  2. The immune system keeps you healthy.
  3. There are two types of white blood cells.
  4. Phagocytes destroy invading germs.
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