Explanation:
Deoxyribonucleic acid (DNA)is a molecule composed of two polynucleotide chains that coil around each other and growth is the increase of size in a child while development is the process in which a child develops his or her skills
An enzyme works like a key to a lock. If it finds the right thing it can work.
Hope it helps.
Gravity is pulling her towards the ground but also forward as the child is on a slope. Friction is pulling against the child as the slide pulls against her.
~ B - Adding wood to a burning fire to increase the heat.
A is kind of like a reaction to negative feedback - it's too hot, so cooling down.
C is like turning the air conditioner off. It's cool enough.
B on the other hand adds something to the whole by reinforcing it. The fire is a metaphor for the writer's self-esteem, ego, good-feelingness, what-have-you.