Food is food to food is food to food is what?

Umm... if food is to food and to food is to food then it is food...

Explanation:

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If food is food to food is food to food is more then likely fOoD

Explanation:

the reason for this is because there are twelve o's in your question and half of twelve is 6 and half of six is three and half of three is 1 and a half which means that you have and uppercase o and a lowercase o in food making your answer fOod

answer; ///(b) it is composed of four protein chains and four heme groups;

but there is no

i guess you forgot putting it.