[há» đã làm] [Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step. What should she do next?perform an experimentdesign a proceduremake observat] [bản đẹp] [深化とは] [xem nốt ruồi] [Toán học cho đại chúng] [FTB or ODU abbrevation in smatv] [LÅ© trẻ đưỠng tà u] [cổ đại] [Xanh má»™t mà u xanh khác]