The codon chart shown here uses the three base sequence found on the mrna molecule after the information is copied from dna during transcription. imagine that a protein is being assembled at the ribosome. what is the amino acid sequence for the codons guu aaa? a) valine - lysine b) leucine - lysine c) valine - arginine d) leucine - arginine

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.