Answer:
Mass and distance
Explanation:
Gravity is the force that gives weight to objects and causes them to fall to the ground when dropped. Two major factors, mass and distance, affect the strength of gravitational force on an object. You witness the first factor in everyday life - more massive objects are heavier.
Observation because you see the effect you do not perdict the effect
Answer:the host cell bursts and dies
Explanation:
It was the theory that an organism could form from something such as mud for an example.
