Question

Answer the following questions.
1. Explain the process of digestion in small intestine of human.
2. Explain how plants obtain nitrogen​

Answer 1

1. Explain the process of digestion in small intestine of human.

Ans. The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.

2. Explain how plants obtain nitrogen​

Ans. Plants get their nitrogen from the soil and not directly from the air. ... The act of breaking apart the two atoms in a nitrogen molecule is called "nitrogen fixation". Plants get the nitrogen that they need from the soil, where it has already been fixed by bacteria and archaea.