Answer:
en los jugos pancreáticos hay bicarbonato de sodio que neutraliza la alta acidez. 
 
        
             
        
        
        
The species was a keystone species.
Keystone species are the species that ''hold the ecosystem together''.
They have an important role in the trophic networks (food chains) and often they can even afflict changes in the abiotic part of the ecosystem (change the composition of soil, purify the water, lower the effect of the wind etc)
Therefore, when a keystone species is removed it affects greatly the whole ecosystem.
        
             
        
        
        
<span>B.	A producer supplies energy for the consumers in the ecosystem.
In science, a producer is an organism that can create it's on food and serves as food for a consumer. An example of a producer could be seaweed, or algae. 
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Constructive force Is what you’re looking for