Answer:
A. gravity
Explanation:
gravity is a force that makes things go downwards in this case Jeannie put her soccer ball on the ground on the side of the hill, the hill was in the top hence the ball went downward
Amino acids create protiens, endless possibilities of combinations of amino acids result in a wide variety of proteins
Answer:
Zebra mussels are spread from one body of water to another by natural flow, carried on the feathers or feet of birds, or by humans in bait buckets or on boats.
Prokaryotes dont have a nucleus
Answer:9:3:3:1
Explanation: Just took the test!