Answer:
D
Explanation:
The white blood cells in you are the guards of the body. They help fight infections that they dont recongize. They also can break down bacteria.
I believe the answer is C because it has multiple answers in one, and the most effective early childhood curriculum can have more than one solution.
If I'm not mistaking, it's heterozygous, What are your options
By components do you mean organs? If so...
1. Brain - gives demands ands orders to all of the body to function properly
2. Heart - pumps blood, and keeps the organism receiving the blood alive
3. Skin - protects the tissue from UV Rays that may be harmful