DNA is a polymer of ________, which consist of a sugar, a phosphate group, and a ________.
A. nucleic acids; nucleotide
B. amino acids; nucleotide
C. proteins; nucleotide
D. nucleotides; nucleic acid
E. nucleotides; nitrogenous base
Answer: E
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During the ossification of long bones, the primary and secondary ossification centers grow toward each other as cartilage is replaced with bone. What is the name for the cartilage left between these two ossification centers?
The lymph ducts in the thoracic cavity drain into the:
A) inferior vena cava. B) junction of the brachiocephalic vein and the superior vena cava. C) junction of the internal jugular vein and subclavian vein. D) external jugular veins.
The primary motor area allows us to consciously move our skeletal muscles
Indicate whether the statement is true or false
Nucleic acids are broken down into
A. amino acids and phosphates. B. fatty acids, amino acids, and sugar. C. nitrogen bases, sugar, and glucose. D. adenine, cytosol, and tyrosine. E. sugars, phosphates, and organic bases.