What is Ecology?.

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Presentation transcript:

What is Ecology?

What is Ecology?? The study of interactions that take place between organisms and their environment. It explains how living organisms affect each other and the world they live in.

Habitat & Niche Habitat is the place a plant or animal lives Niche is an organism’s total way of life

The Nonliving Environment Abiotic factors- the nonliving parts of an organism’s environment. Examples include air currents, temperature, moisture, light, and soil. Abiotic factors affect an organism’s life.

The Living Environment Biotic factors- all the living organisms that inhabit an environment. All organisms depend on others directly or indirectly for food, shelter, reproduction, or protection.

Biotic

Abiotic

Levels of Organization Ecologists have organized the interactions an organism takes part in into different levels according to complexity.

1st Level of Organization Organism: An individual living thing that is made of cells, uses energy, reproduces, responds, grows, and develops

2nd Level of Organization Population: A group of organisms, all of the same species, which interbreed and live in the same place at the same time.

3rd Level of Organization Community: All the populations of different species that live in the same place at the same time.

4th Level of Organization Ecosystem: Populations of plants and animals that interact with each other in a given area with the abiotic components of that area. (terrestrial or aquatic)

5th Level of Organization Biome A large group of ecosystems that share the same climate & have similar types of communities. Temperature and Precipitation determine the distribution of biomes

6th Level of Organization Biosphere: The portion of Earth that supports life.

The Biosphere Life is found in air, on land, and in fresh and salt water. The BIOSPHERE is the portion of Earth that supports living things.

HOMEWORK Notes Assignment # 1 Create A Quiz With 10 Questions - Only 5 May Be Multiple Choice Items, the rest may be matching, fill-in the blank, essay, or a combination of these three.