What is the building block molecule of a protein?

A. monosaccharide
B. amino acid
C. nucleic acid
D. fatty acid
E. glycerol


B

Anatomy & Physiology

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________ are cytokines that make cells resistant to viruses.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

The hepatic portal vein carries blood

A) from the kidneys. B) high in acid. C) high in nutrients. D) high in oxygen. E) All of the answers are correct.

Anatomy & Physiology

The outer layer of skin is the ______________

Fill in the blank(s) with correct word

Anatomy & Physiology

Usually epithelial tissues do not have blood vessels

Indicate whether the statement is true or false

Anatomy & Physiology