In this task, you are given a sentence in the Spanish language. Your task is to translate the Spanish sentence into the English language.
--------
Question: El espacio muerto anatómico

Answer: The anatomical dead space


Question: Contiene un grupo imidazol la cadena lateral de

Answer: It contains an imidazole group the side chain of


Question: ¿Qué procedimiento específico de la estrategia experimental hace que sea la más adecuada para contrastar hipótesis de causalidad? 

Answer:
What specific procedure of the experimental strategy makes it the most appropriate to test hypotheses of causality?