The heart increases in size. While you're a child, your heart is a lot smaller than it'll be as an adult size. Your heart increases because as you grow, your body and brain increase. If you were an adult carrying the heart of a 5 year old, your heart wouldn't be able to supply the amount of blood your body needs to every part of it, most importantly, the brain.
Answer: It is A, B and C
Explanation:
Engenuity question for math.
D. Germs is the correct answer.
