Answer:
I feel it's to easily differentiate the positive from the negative...... like in gram staining of bacteria, the colour tell us which bacteria is gram positive or gram negative...... I just feel that this is science and it is advisable to know what the opposite result of an experiment should look like.
Answer:
C. Poorly functioning immune system
Explanation:
Being underweight would basically mean that you aren't receiving enough nutrition for your body, causing your immune system to weaken from it.
Yes, in the first stage. Prophase I