★ Excretory System Quiz
The main nitrogen-containing waste excreted in urine of aves is
A. ammonia
B. uric acid
C. nucleotides
D. urea
Select your answer:

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A. Denaturation
B. Genetic mutations
C. Lack of substrate
D. Enzyme overproduction
Medical Terminology › View
A root word must have a _______ to be complete term
A. Suffix
B. Prefix
C. Another root
D. combining vowel