1. Ecosystems Unit 1

2. Biome: a large area where plants an d animals live together. Tundra: cool summers and very cold winters.Scarce precipitation. You can see lichen, moss, migratory birds and Arctic foxes. Mediterranean: hot summers and cool winters. Moderate precipitaction. You can see shrubs, aromatic herbs, wild goats, rodents and lizards. Tropical rainforest: warm temperatures all year. A lot of precipitation. You can see orchids, ferns, anteaters, jaguars and butterflies. Grasslands: Temperature extreme. Scarce precipitation. You can seelarge areas of grasses, crops, antelopes, sheep and cattle. Temperate deciduous forest: hot summers and cold winters. It rains all year round. You can see deer, squirrels, foxes. Desert: warm and hot daytime temperatures all year. Hardly precipitation. You can see cacti, small bushes, lizards, snakes and scorpions. Coniferous forest: cool summers and cold winters. Moderate precipitation. You can see evergreen coniferous trees, bears, wolves and beavers. T Y P E S

3. Ecosystems: interaction between all the living and non-living things in an area. ECOSYSTEM Living things Flora: All plants live in it. Fauna: All the animal live in it. Fungi and microorganisms Environment All the physical elements in the area where the living things are: air, water, soil, sunlight, temperature and climate A POPULATION: is the organisms in area that belong to the same species. A COMMUNITY: populations interact with each other.

4. Sun lightproducer Primary consumer Secondary consumer Tertiary consumer decomposer FOOD CHAIN Food web.- Many different food chains are connected in the same ecosystem.

5. Pollution is the contamination of the Earth’s air, soil and water