The filtration units of kidneys are called:

In which of the following groups of organisms, food material is broken down outside the body and absorbed?

How do carbohydrates,proteins,and fats get digested in human beings?

The volume of glomerular filtrate produced is $180 \, L$ per day,but the volume of urine excreted is just $1-2 \, L$. Give a suitable reason for this statement.

Which is the correct sequence of parts in the human alimentary canal?

Which is the first enzyme to mix with food in the digestive tract?