T cell activation is initiated by an activated B cell.
The B cell presents antigens on its MHC receptors. The T cell recognizes the antigen bound to the MHC. There are other cosignals that fully activate the at cells but the antigen on the MHC receptor on the B cell is where it all starts.
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because the Great Pacific Garbage Patch is a collection of marine debris in the North Pacific Ocean.
The best and most correct answer among the choices provided by your question is the third option or letter C. RNA carries genetic information.
RNA acts as a messenger between DNA<span> and the protein synthesis complexes known as ribosomes, forms vital portions of ribosomes, and acts as an essential carrier molecule for amino acids to be used in protein synthesis.</span>
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