|the living or once-living parts of an environment||Biotic|
|the non-living parts that the living parts of an environment need to survive.||Abiotic|
|is a geographic area on Earth that contains ecosystems with similar biotic and
| are biomes that receive very little rain. Earth's driest ecosystems. Most
are hot during the day and cold at night and some remain cold all the time.
Animals: lizards, snakes
Plants: cactus, thorny shrubs
| biomes are areas where grasses are the dominant plants. Also called
prairies, savanna and meadows. They have wet and dry seasons, deep fertile soil.
Animals: hawks, wolves, prairie dogs
| forests that grow near the equator. They receive large amounts of rain, weather is warm and wet year round. *Half of Earth's species
live in the tropical rain forest especially in the canopy of trees.
|TROPICAL RAIN FOREST|
|region of Earth between the tropics and the polar
circles. They have mild climates with distinct seasons. Soil is rich and moist.
Animals: mosquitoes, wookpeckers, owls, deer, elk
Plants: spruces, cedar, firs, redwood
|TEMPERATE DECIDUOUS FOREST|
|is a forest biome consisting mostly of cone-bearing evergreen trees. It occupies more space on Earth's continents than any other biome. Winter are long,summers are short, and the soil is thin and acidic. Animals: owls, mice, moose, bears||TAIGA|
| is cold, dry and treeless. Winters are long and freezing and soil remains
permanently frozen (permafrost) which prevents deep root growth.
Animals: polar bears
|4 major types of water, or aquatic ecosystems||1 freshwater 2 wetland 3 estuary 4 ocean|
|is the amount of salt dissolved in water. Water in saltwater ecosystems have high salinity compared to water in freshwater ecosystems.||Salinity|
|streams, rivers, ponds and lakes. Streams form from underground sources of water. Rivers form when streams flow together.||FRESHWATER: STREAMS AND RIVERS|
|are aquatic ecosystems that have a thin layer of water covering soil that is wet most of the time. Wetlands contain freshwater, salt water, or both. They are among Earth's most fertile ecosystems. .||WETLANDS|
|are regions along coastlines where streams or rivers flow into a body of salt water. Have varying degrees of salinity.||ESTUARIES|
|Most of Earth's surface is covered by ocean water with high salinity.||OCEANS|
| is the ocean shore between the lowest low tide and the highest
| is an underwater structure made from outside skeletons of tiny,
soft bodied animals called coral
|Ecological Succession||the process of one ecological community gradually changing
|Climax community|| a stable community that no longer goes through major ecological
|Pioneer species||the first species that colonize new or undisturbed land.|
|Aquatic succession:||when a freshwater ecosystem changes over time in a natural,
|Eutrophication|| the process of a body of water becoming nutrient-rich. This is a
natural part of aquatic succession.