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Because that is the food that humans have evolved to eat and they are capable of metabolizing all of them.
It would be possible to survive on just proteins provided one also had a supply of vitamins. But it would not be possible to survive on a diet containing absolutely no protein.
What else can I help you with?
How do people survive to the different weather disaster?
By doing their best to success and survive the weather disasters ..
How did early people adapt to different environments in the Americas?
Early people in the Americas adapted to different environments by learning to survive. People in the north learned to survive in icy, treeless lands whereas people closer to the equator learned to survive in the hot, wet climate and thick vegetation of the Amazon rain forests.Early people in the Americas adapted to different environments by learning to survive.
Is carbohydrate good for people?
yes
Define a resource-poor country?
A country without the resources to have its own people survive. Resources are needs different in every country. America's resources are different then Chile's, but resource poor would mean their people could not survive.
What is the carbohydrate in milk that could cause milk intolerance?
Lactose is a simple carbohydrate and typically is the reason for milk intolerance in people. Lactose is a simple sugar/carbohydrate.
Is CO2 a carbohydrate fat or oil protein or amino acid or none of these?
Well for all you people trying to look this up for a biology paper I'll help you out. *Lazy underachievers* The answer is it is inorganic and a carbohydrate. Look it up in our textbook next time.
What is the deifinition of egg allergy?
The egg is made up of many different proteins. Most people with an egg allergy are allergic to the egg white proteins, and others are allergic to the yolk.
What is the difference between lifestyle of people living in mountains plains and plateaus?
They have to survive different tempatures
What did people trade in the age of discovery?
food and water and different things that would help them to survive
How was life different for rich and poor people in ww1?
poor people couldnt afford things that could help them to survive x
Proteins are not responsible for?
Proteins are not responsible for global warming. That's greenhouse gases, which are an entirely different kind of chemical. There are also millions of other things that proteins are not responsible for. Why do people always want to blame the proteins? It's so unfair.Sending Nerve Impulses
Why people have 2 eyes?
The answer has to be because of natural selection. Otherwise people would have a different number of eyes. But evidently a different number of eyes makes people less likely to survive and pass on that characteristic.
