Which atoms are in all carbohydrates? carbon, iron, oxygen carbon, hydrogen, oxygen carbon, hydrogen, nitrogen nitrogen, phosphorus, oxygen

The study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Apart of an ecosystem that can restrict the growth of a population is referred to as