Answer:
A. Biodiversity will decrease .
Explanation:
- The loss of a keystone species can cause extinction or mass destruction of other species that are dependent on it because keystone species are those species which significantly influence the existence and survival of other species in an ecosystem
- Since, beavers are considered as the keystone species, their removal from the ecosystem will cause loss of many other species in the ecosystem resulting in Decrease in the biodiversity of that ecosystem.
Enzymes can be denatured in several ways:
1. Lower the temperature: the bonds holding the amino acids together tighten and constrict
2. Increase the temperature: the bonds tighten and constrict
3. Increasing or decreasing the PH levels results in bonds being altered therefore denaturing the protein
It would be #2 because it dosent have those specific antigens to defend the pathogen.