Some nutrients are considered “essential” in the diets of certain animals because _______?

بعض جانوروں کی خوراک میں کچھ غذائی اجزاء کو "ضروری" سمجھا جاتا ہے کیونکہ _______؟

They cannot be manufactured by the organism

Only those animals use the nutrients

They are subunits of important polymers

None of these

Essential nutrients must be obtained through the diet because the organism cannot synthesize them.

These nutrients are crucial for various biological functions, including growth and metabolism.