Introducing

Ecosystem Biotic Factors Abiotic Factors includes all abiotic and biotic factors in one particular environment Biotic Factors Abiotic Factors the living parts of an ecosystem the nonliving parts of an ecosystem

Biotic Factors Bio include plants, animals, fungi, microorganisms bio(s), bio(t) (G) root life biotechnology biomechanics biosphere biofeedback biostatistics biography biotic biology

Examples of Biotic Factors

a, an (G) prefix not, without Abiotic Factors A include air, water, soil, temperature, wind, source of energy (usually sun) a, an (G) prefix not, without abiotic amusia amoral atoxic

Examples of Abiotic Factors

Examples of Ecosystems Coral Reef in Belize Mountains in Colorado Arizona Desert

The Sun Definition: A flaming ball of hot gas that gives off heat and energy. Characteristics: abiotic, hot, gives off light energy, star, helps plants produce food Illustration: Draw a picture of the sun

Producer Definition: An organism that can make it’s own food. Characteristics: autotroph-can carry out photosynthesis, biotic, source of all the food in an ecosystem Examples: grass, oak tree, flowers, other plants Illustration: Draw a picture of a tree

Consumer Definition: An organism that obtains energy by feeding on other organisms. Characteristics: heterotroph- depend on producers for food and energy Herbivores- eat only plants Carnivores- eat only meat Omnivores- eats both plants and animals

Consumer Examples: Humans, sharks, snakes, lions, hawks Illustration: Draw a picture of a consumer

Decomposer Definition: Organisms that break down wastes and dead organisms and return the raw materials to the environment. Characteristics: Return simple molecules to the environment Remove waste and dead organisms

Decomposer Examples: Bacteria and fungi, such as mold and mushrooms Illustration: Draw a picture of a mushroom

Scavenger Definition- a carnivore that feeds on the bodies of dead organisms. Examples: Vultures, catfish, ants

Ecosystems Biotic Abiotic do not necessarily have clear boundaries due to biotic and abiotic changes can change daily as things move from one ecosystem to another Biotic Abiotic migration, seed dispersal flood, erosion, drought

Biotic Factors interact with each other in complex ways parasitism mutualism competition such as also interact with abiotic factors in the ecosystem dependent upon water, minerals, temperature, light

Biome a major regional or global biotic community, a super ecosystem, defined chiefly by the dominant forms of plant life and the prevailing climate

Major Biomes of the World desert grassland tropical rain forest deciduous forest coniferous forest tundra ocean

Levels of Organization biome group of organs working together one individual living thing group of different kinds of tissues working together all organisms of the same kind living in one area large region with typical plants and animals that includes several ecosystems all living and nonliving things interacting within a certain area all interacting populations in an ecosystem group of similar cells organized to work together smallest unit of living things ecosystem community population organism organ system organ tissue cell

Bibliography Arms. (1996). Environmental Science. Orlando,Florida: Holt, Rinehart and Winston, Inc. McLaren, James E, and Rotundo, Lisa (1985). Heath Biology. D. C. Heath and Company. The American Heritage Dictionary of the English Language, Third Edition. (1992). Houghton Mifflin Company.