Answer:
The brothers have different alleles.
Explanation:
Answer:
Motion is a change in position measured by distance and time. Speed tells us the rate at which an object moves.
It controls all the involuntary actions like digestion and beating of our heart
Answer:
It is important because plants would not be able to produce food for themselves, so the plant would die. Animals that feed on plants would not be able to survive, and animals that feed on other animals would die too because they would not have any food.