This is a model of translation in which the genetic code carried on mrna is used to assemble amino acids into a polypeptide. a codon is a sequence of three nucleotides that codes for a particular amino acid. using the model, where would you find a codon? a) on mrna b) on trna c) attached to the ribosome d) attached to the polypeptide

In the model, a codon is identified as part of the mRNA strand. A codon is a series of three nucleotides on mRNA that codes for an amino acid.

mRNA

This is one form of RNA that serves as a template for protein synthesis. It is transcribed from DNA and then translated at ribosomes to produce a protein.

the answer to that problem is A

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

there really is life in the deepest part