Which of the following molecules is NOTÂ considered a porphyrin?
A. Chlorophyll
B. Vitamin B12
C. Hemoglobin
D. Peptidoglycan
Answer: D
Biology & Microbiology
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Which of the following is an example of a special sense?
A. touch B. temperature C. pain D. vision E. position
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The alimentary canal is ________.
A. the accessory organs B. the esophagus C. the small and large intestines D. the series of digestive organs
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What is the function of cerebrospinal fluid?
What will be an ideal response?
Biology & Microbiology
What is a riboswitch?
What will be an ideal response?
Biology & Microbiology