Select the correct statement about essential nutrients. 1. All animals require an identical set of essential nutrients. 2. Essential nutrients must be obtained from diet. 3. Due to their biochemical sophistication, humans have to ingest fewer essential nutrients than do other animals.

The correct statement is ' 2

'Essential nutrients must be obtained from diet

Explanation:

Essential nutrients are those nutrients that are obtained from food as our body does't capable of producing those nutrients in adequate amount.They are also called as building block of carbohydrate,protein,vitamins,minerals and water.

The intake of essential nutrients are important as they provide energy,preventing our body from the attack of different germs and diseases,helps in physiological growth and development, provide adequate amount of energy to do work etc.

The non essential nutrients are produced by the body which are biotin that is produced by gastrointestinal  bacteria,cholesterol that are produced in liver etc.