Cuando el profesor deja caer la piedra de manera bertical el tipo de trayectoria q esta es describe

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

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.