Interactions of Living Things May 2012 Living or

Interactions of Living Things May 2012

Living or Not Living? • Biotic – any living thing in an ecosystem – Examples: (list our class examples) • Abiotic – any nonliving parts of the environment – Examples: (list our class examples)

• Weigand took Vance and Reed to school on the court!!!

Organization in the Environment • Organism - one member of a species

Organization in the Environment • Population - a group composed of the same species

Organization in the Environment • Community - all the populations in an area; includes plants

Organization in the Environment • Ecosystem community of organisms plus their abiotic environment

Organization in the Environment Biosphere - where life exists on Earth

One yellow reef fish = organism

all yellow reef fish = population

all fish types, sea anemone, tube worms, coral, sea weed = community

all fish types, sea anemone, tube worms, coral, sea weed = community

the coral reef, water, sunken ship, …. = ecosystem

Whole Earth = Biosphere

Organization in the Environment Example: • Organism - yellow reef fish • Population - all yellow reef fish • Community - all fish types, sea anemone, tube worms, coral, sea weed • Ecosystem - the coral reef, water, sunken ship, …. • Biosphere - Earth

Living things use energy! Living things are divided groups by how they get their energy. – Producers: gets energy from sunlight – Consumers: gets energy from other things • Herbivore: eats only plants • Carnivore: eats only animals • Omnivore: eats plants and animals – Decomposers: get energy from dead things

Living things use energy! • Food Chain - shows energy flow from one organism to another

Living things use energy! • Food Webs – interconnecting food chains in an ecosystem

Living things use energy! • Energy Pyramid – a triangular diagram that shows the loss of energy as it moves between organisms In an energy pyramid, a producer is ALWAYS on the bottom, with a predator on top.