Question

Small intestine is very long (about 6 metres) Why?

Answer 1

small intestine is mainly ment for absorption of food . so by being long it provides a slow movement of food particles and food digests more properly

Answer 2

small intestine is long becouse our body needs to abaorb nutrients and this work is very slow so small intestine is long so that it has enough time to absorb water and nutrients from food