The variable is independent because you are affecting it by changing it individually. It would be dependent if you changed one variable then the water was affected.
Answer: to protect the body from invasion in the gut
Explanation: Gut-associated lymphoid tissue (GALT) is a component of the mucosa-associated lymphoid tissue (MALT) which works in the immune system to protect the body from invasion in the gut.
Answer:
True
Explanation:
sodium explodes when it contacts water
