Answer:
"Fat cell, yellow bone marrow, femur, nervous system."
Explanation:
Via process of elimination, we can eliminate the first and last answers, as the biggest unit of a single organ system would be the entirety of the system, and those have the system itself jumbled in between the list.
That leaves us with the center-two answers. I believe "bone" is too vague, meaning that bone, in some cases, may be smaller than cartilage, thus, leaving you with the above answer.
is there any answer choices
The answer would be letter C.
Answer:
well childhood disease is diseases that happens in childhood like chickenpox and etc
I hope it helps