Question

Please answer the above attachment


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Answer 1

The small intestine is where most chemical digestion in the human body takes place. Most of the digestive enzymes in the small intestine are secreted by the pancreas and enter the small intestine via the pancreatic duct.

Plants obtain nitrogen through a natural process. Nitrogen is introduced to the soil by fertilizers or animal and plant residues. Bacteria in the soil convert the nitrogen to ammonium and nitrate, which is taken up by the plants by a process of nitrogen fixation

Answer 2

Answer:

1.Once in the duodenum, the food is mixed with more digestive enzymes from the pancreas and bile from the liver. Food is then squeezed into the lower parts of the small intestine, called the jejunum and the ileum. Nutrients are absorbed from the ileum, which is lined with millions of finger-like projections called villi

2.Nitrogen is obtained naturally by plants. Fertilizers and animal and plant wastes add nitrogen to the soil. Bacteria in the soil convert nitrogen to ammonium and nitrate, which plants absorb through a process known as nitrogen fixation