Answer:
Foxes and dogs, cats and lions
Explanation:
A community interaction would be correct!
A community is when multiple populations interact with each other, in this case the dolphins and fish.
Answer:
Hormones
Explanation:
Hormones is the term used for chemical secretion of endocrine glands responsible for changes taking in the body.
I believe it is the red blood or platelets cell since white blood cells are trying to defend themselves