Completar frases Natural World Act.2Versión en línea Natural World Act.2 pg. 94. This activity helps students practice their skills regarding book contents . por Margarita Araque 1 flies atmosphere Nitrogen species Particles butterflies stem Ants bettles insect Predators Radiation Oxygen spikes 1 . and are gases which in the earth´s 2 . Both and are types of flying 3 . is the name of energy in the ofrm of rays or waves 4 . and live on the ground and soil 5 . Leaves and flowers grow from the main of a plant 6 . are tiny poeces of material 7 . are things wich catch and eat other 8 . Some plants have long sharp , , like needle s