Answer: if they help you break down food
Explanation:
Mutualism is a biological relationship between TWO or more organisms of different species (inter-specie) in which one or more benefits.
A good example is bacteria in the human intestine that helps to break down cellulose contained in food, thus benefitting humans.
Answer:
Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.
Explanation:
When all the members of a species disappears, this is called extinction.
-hope this helps :3
I'd say flash floods I'm 70% sure.