A quantitative observation must be a measurement of some sort. (Something including numbers). Qualitative, on the other hand, is when you are using words to describe what has happened.
The scientist should make a new hypothesis and do a new experiment! That is what I say!
In the sliding filament model of muscle contraction, the myofilaments slide over each other, resulting in the overlapping of actin and <span>myosin. Hope this helps. Have a nice day. Feel free to ask more questions. Thank you.</span>
