The answer is c or a its one of the two
Answer:
To make a positive change in the environment.
Explanation:
We have to Stimulate birds with 3 different beaks by feeding them fruit to stimulate a positive change in the environment because birds control insect and rodent in the environment that causes severe damage to crops. It also contributes to pollination, and seed dispersal which result in great benefits to people. Annually insects destroy hundreds of millions of dollars of agricultural and forest products so if we provide safe environment to the birds they can save our millions of dollars.
Trypsin is a serine protease found in digestive system of vertebrates. they are produced in the pancreas.it catalyzes the hydrolysis of peptide bonda, breaking down into smaller peptides
in tissue culture, trypsin is used to re suspend cells adherent to the cell culture dish wall.
Erepsin is a protein found in intestinal juices but can also be found in many other cells.
I think it’s C explanation : i learned this a while ago