Tại sao quá trình nhân đôi ADN lại diễn ra trước quá trình phân chia tế bào? Ý nghĩa

Which of the following is not a way in which a vascular plant's xylem and phloem are similar?

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide

Which statement explains how gravity and intertia work together