Ecology Review

Ecology  The study of relationships and interactions of living things with one another and their environment What different types of organism interactions can you think of?

Biotic Factors  Abiotic Factors  Look at the picture of an ecosystem and state the abiotic and biotic factors Biotic Factors  Living Factors (animals, plants, etc.) Abiotic Factors  Non-living factors (water, air, light, temperature, soil, minerals) Abiotic  water, air, mountain, temperature, sand, sunlight Biotic  fish, seaweed, dolphin, lobster, seagull, seal, sea anemone, coral, etc.

Biosphere  ALL LIFE Part of earth where life exists Life can only be found a few miles above or below sea level (near the surface) Includes: Atmosphere Hydrosphere Lithosphere ALL LIFE AIR WATER LAND (rock)

Biomes  What different biomes can you name? A large region characterized by a specific type of climate and certain types of plants and animals What different biomes can you name?

Ecosystem  Organisms and their physical environment Includes the community and habitat Interaction of biotic and abiotic factors

Habitat  Physical area where an organism lives What are these animals’ habitats? Tundra Desert Ocean Savanna

Community  All of the different organisms that live within a certain area (not just animals) This community consists of many different populations

Population  All organisms of a single species that live within a certain area Look at the examples. What populations are evident? Giraffe, buffalo, grass, trees

Nitrogen Cycle

Carbon Cycle

Water Cycle