Answer:The immune system protects your child's body from outside invaders, such as bacteria, viruses, fungi, and toxins (chemicals produced by microbes). It is made up of different organs, cells, and proteins that work together.
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Answer:
Explanation:
it must be kept in place at least 10 hours after intercourse
Properties of matter. solid, liquid, gas.
atoms. tiny particles that make up matter.
volume. amount of space that matter takes up.
mass. the amount of matter an object has.
