el aparato excretor sirve para A. llevar los alimentos y el alimento a las celulas B. recoger los desecjos metabolicos que se han de eliminar despues por los riñones C. interbenir en las defensas del organismo, regula la temperatura corporal​

What is the definition of genes? a. small rna chains that transfer a specific amino acid to a growing polypeptide chain at the ribosomal site of protein synthesis during translation b. sections of dna a cell copies as rna strands to make specific proteins during transcription and translation c. molecules of rna encoding a chemical blueprint for a protein product