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. typecauseeffect airBurning oil and coal Global warming, acids rain, links in food chain disappear, respiratory problems in human soilChemicals from agriculture. Waste from industries and homes. The contamination passes into plants, poor soil for cultivation, affects the food web, waterWaste deposited in rivers, lakes, seas. Acid rain. Aquatic living things die, food chain affected. Pollution is the contamination of the Earth’s air, soil and water