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The article entitled "Life on Earth" is trying to make the point that RNA likely included before DNA. Forthis article which of the following is false?
A. Chains of RNA nucleotides can form spontaneously on mineral surfaces.
B. The polynucleotide RNA chains can create a duplex and is twisted into a double helix in a manner very similar to DNA
C. Certain RNA nucleotide chains can fold upon themselves and adopt conformations that permit for them to catalyze chemical reactions.
D. Short RNA molecules can self-replicate if given with a catalyst.
Energy Flow - Ecosystem Our world is a solar-powered system, and green plants are the entry gates of energy into ecosystem. The total incoming solar energy, only a very small
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Q. What are the pancreatic tissues involved respectively in the endocrine and exocrine secretions? What are their respective hormones and enzymes? The exocrine secretion of the
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The vertebral bodies are much larger in the lower back than the neck. What is the functional significance of this structural difference?
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