The Immune System: Marissa McKay

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Across
  1. 2. Memory cells remember antigens that have already attacked the ____
  2. 4. All antigens have a ______
  3. 5. All antibodies _________
  4. 6. What is our immune system called after our body develops immunities?
Down
  1. 1. What type of cells do T-cells get rid of?
  2. 3. Some immunity eventually goes away so we need a _____