¿Qué se requiere para ejercer la sexualidad con respeto y responsabilidad?​

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Based on the results of this study, what questions remain unanswered? how can these questions guide future research

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?