DNA and RNA are nucleic acids and are composed of nucleotides. The structure of nucleic acids has an effect on the function. Identify the type of chemical bond and describe the directionality of structure in DNA and RNA. Explain how a change in the subunits can affect their structure and function.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

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