Cows do not eat corn in their natural diet (they are supposed to eat grass). I was wondering what animals (besides locusts) eat corn in their natural diet. What animals would eat corn in the wild?

The first principle of diet planning is that the foods we choose must provide energy and the essential nutrients, including:
A) water.
B) fuel.
C) oxygen.
D) carbon dioxide.
I think its fuel but not sure. Please Help
Thank You In advance.

I can understand that it’s an advantage to be able to live off one foodstuff exclusively, if it’s the only one that is abundantly present in your environment (like, as I understand, the panda bear’s diet consists of bamboo only).

I can also understand why it’s convenient for a carnivore to also be able to live off vegetation if the number of prey is temporarily limited.

But what is the advantage of requiring a lot of different foodstuffs to thrive, like humans do? If only one vitamin or mineral is missing, it’s detrimental to our health. Why have we evolved in a way that has made our health dependent on the weakest link in our food supply?

10 points to the best answer.

Thanks

Which of the following is required in the diet to keep food moving through the intestine?
Fat
Protein
Fibre
Starch
???
Please help!