Every year one hundred trees remove approximately from the atmosphere. a. five tons of carbon dioxide b. four hundred pounds of ozone c. three hundred pounds of particulates d. all of the above

(amoeba sisters video recap: pedigrees and need

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration

Which of the following molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate