Abiotic/ Biotic
Abiotic Non living factors in an ecosystem, that an organism depends on.
Air Atmosphere – contains Nitrogen 78% Oxygen 21% CO2 O2 in photosynthesis
Water Most organisms are 80% water Greater diversity with more water
Soil Mixture of sand, silt, clay, and organic substance – source of nutrients Has many layers and may contain living things in it.
Sunlight Life requires energy – common source is the sun Sunlight determines season change
Temperature 0- 50°C – most desirable temperature Temperature depends on elevation and latitude
Climate Weather over time Allows living things a consistent and predictable environment.
Biotic The living or once living things in an ecosystem.
Dead Things Bones, Sticks, Leaves, Grass, Etc.
Living thing cause: Disease
Predation - Food
Protection
Ecology Notes
Biosphere entire portion of the earth that is inhabited by life.
Ecology Study of interactions that occur among organisms and their environment. Eco – Homes Ology – Study of
Ecosystem Interaction of living things with their non – living environment.
An organism’s home or shelter.
1.Individual - One single organism of a species
2. Population- All the organisms of a species in a specific area
3. Community - All the populations in a specific area
4. Ecosystem- All the living and non living things in an area
5. Biomes - major types of communities and ecosystems that are typical of broad geographic regions
6. Biosphere- Sphere of earth that comprises of all living things
Example
Food Web – interconnection of plants and animals Food Chain – follow a single path
Autotrophs - make their own food (plants) Heterotrophs – can’t make their own food (animals)
Producer – food source ( Plants, Bacteria) Consumer – Eats producers or consumers ( dog, grasshopper, humans) Decomposers – Breaks down consumers and producers ( Maggots, Mushrooms, Vultures)
Herbivore – Eats plants only (deer, cow) Carnivore – Eats animals only (lion) Omnivore – Eats Plants and Animals (bear, humans, birds)