Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. pH: Each enzyme has an optimum pH range. ... Extreme pH values can cause enzymes to denature.
Experimental technique I believe
The flower would have adapted to allow the hummingbird to better pollinate it. I believe this to be true because it follows the process of adaptation.
It’s an organ that is part of the circulatory system
