The answer is; chromosomes.
During interphase, the chromosomes are usually hard to visualize even under a microscope becaue they are long thin threads called chromatin. During the initiation of mitosis, the chromatin undergo structural changes that condense and shortens them and they becomes visible to even a light microscope.
Answer:
They are small because they are small
Explanation:
They want to be small because they are small
organ system must be present
It is important because you need vitamins and minerals from them e.g. Scurvy no vitamin c
