Question

__________________ are the first organisms to live in an uninhabited area.

Answer 1

Pioneer species are the first organisms to live in an uninhabited area.

Answer 2

The pioneer species are the first organisms to live in an uninhabited area.  I hope that helps! A good way to remember is that a pioneer is "a person who is among the first to explore or settle a new country or area."

- mathwizzard3 ^-^