9. answer: enzymes are made of the macro molecule PROTEIN
Experimental studies generally use the before/after control/impact design. In this approach, an experimental area is trawled and compared before and after trawling (before/after comparison) and with a site that has not been trawled recently (control/impact comparison). This design often involves direct sampling of fauna, video observations, and sonar scans of the control and disturbed sites.
Explanation:
Speed = Distance traveled/ Time taken
Distance = 200m
Time = 15s
Speed = 200/15 = 13.33m/s
I think it’s d sorry if I’m wrong
My suggestion is to take plenty of notes and write definitions
