A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T)
C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G)
Answer: The Asteroid Belt it's a region and it's with space between orbits of planet Mars and Jupiter. And that's where most of our asteroids in the Solar System are found. ( orbiting around the Sun)
Explanation: the Asteroid Belt probably or might or it does contain millions of Asteroids.
I'd say stone tools. Stone can be chiseled or left alone and be used as a weapon to defend one's self, or as a way of getting food.
A amoeba moves by changing the shape of their bodie, forming pseudopods. ( temporary foot like structures).
Hope this helps.