The reasons as for why enzymes are important is because of the first option.
All of the black bears in a cave make up a group.
Pasteurizing milk involves exposing milk to high temperatures for a short period of time to destroy all harmful bacteria that might be lurking in the milk. It is beneficial as it kills most harmful bacteria.
The food web would be likely destroyed because one animal will not have nothing to eat out of the food we’d and then that’s how the food web will be messed up
