Carbohydrates are the primary source of energy for the huma
if your body lacks enzymes that break down carbohydrates, it
you lacked the enzyme to digest proteins, you may not absorb

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If your body lacks enzymes that break down

carbohydrates, it would be unable to get sugar molecules for energy production.

If you lacked the enzyme to digest proteins, you may not absorb enough amino

acids.

The digestive system in our body changes

carbohydrates into glucose; also known as blood sugar to be use as an important

source of energy. Meanwhile, amino acids are organic compounds that combine to

form proteins, which are the building blocks of life.

the correct answer is:

a population changes in response to a change in the environment.