Answer:
its blurry but based on what i see the second one
Explanation:
I think the answer here is neurons, the nerve cells
Answer: false, for example, if a frog eats flies, and the flies are land animals, if they go extinct the frogs could die off, meaning any fish or water dwellers that eat the frogs can starve and cause a large chain reaction.
Hope this helps ^^
Dry and arid parts of the world with little to no rain.