Matching Pairs Artificial Ecosystem MatchingOnline version Students will match the vocabulary words with their definitions. by MaryAnn Hamel 1 Nutrient Cycle 2 Mulch 3 Pesticides 4 Decomposers 5 Organic Matter 6 Artificial Ecosystem 7 GMOs 8 Ecosystem 9 Chemical Fertilizers Living things whose genetic material has been changed by scientists An ecosystem that is created and controlled by humans Chemicals that kill plant pests Organic matter is eaten by decomposers which release nutrients for new plants which die and become organic matter Plants and animals in the soil that eat organic matter A layer of material that is spread on the soil to smother weeds A system of living and non-living things that work together Material made of dead plants and animals Plant food that is made by humans in factories