Because their foots is shaped like a spade
No, studying the effects of sunlight on the color of paper would be an experiment in qualitative data. Quantitative data is based on numbers, a change in appearance is qualitative data.
The answer is D
Because it is kinda basic
In biology, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of residues that form temporary bonds with the substrate (binding site) and residues that catalyse a reaction of that substrate (catalytic site).
