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.
 
        
             
        
        
        
Answer:
b planted 
Explanation:
Kingdom Plantae includes multicellular, autotrophic organisms. Except for a few species that are parasites, plants use photosynthesis to meet their energy demands. Kingdom Fungi includes multicellular and unicellular, heterotrophic fungi.
 
        
                    
             
        
        
        
The answer would be 9. There are nine <span>essential amino acids needed to create a complete protein. </span>
        
             
        
        
        
Adenine (A) binds with Thymine (T).
<span>Guanine (G) binds with Cytosine (C).
</span>
Adenine and Guanine are purines. Thymine and Cytosine are pyrimidines.
Hope this helps !
Photon