Where are proteins first digested in the alimentary canal?

All non-green plants and animals are . . . . . . .

What substances are contained in pancreatic juice? What are their functions?

Assume that you are a veterinary surgeon and you have removed a significant length of the small intestine of a bear suffering from an intestinal tumour. After its recovery,would you suggest a plant-based or a meat-based diet for the bear? Provide a reason for your answer.

Which feature$(s)$ help the plants to make food by the process of photosynthesis?

What substances are contained in gastric juice? What are their functions?