Which is a characteristic of RNA
What will be an ideal response?
the sugar in RNA is ribose
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The cause of infant respiratory distress syndrome is a lack of ____
a. oxygen b. carbon dioxide c. hemoglobin d. surfactant e. surface tension
The neutral theory of molecular evolution, as developed by Kimura, posits that ________
A) functionally neutral mutations that become fixed in populations occur in much larger numbers than those that become fixed by natural selection B) functionally neutral mutations never become fixed in populations without some element of selection also acting on them C) functionally neutral mutations are not subject to genetic drift D) functionally neutral mutations contribute very little to changes at the molecular level
All of the following are correctly matched "tissue system - function" except:
A. Ground tissue: anchors and provides support B. Dermal tissue: protects plant C. Vascular tissue: moves molecules and provides support
Endocytosis and exocytosis are means of transport used by
A. bacteria. B. eukaryotes. C. archaea. D. all prokaryotes. E. nothing; no cells use both processes.