Intro to Ecology

ENVIRONMENTAL FACTORS

🞭 Biotic – all living or once living things that

affect organisms

🞭 predators, infection/diseases, competition

🞭 Abiotic – physical and chemical

characteristics in an environment

🞭 nonliving factors

🞭 pH of water and soil, temperature, weather

patterns.

CHECKPOINT #1

Q: HOW do biotic and abiotic factors
affect one another?

LEVELS OF ORGANIZATION IN THE
ENVIRONMENT: (smallest to largest)

1. Organism

🞭 A single living thing

2. Population

🞭 A small group of one species in an area

3. Community

🞭
All of the populations living in a specific
area

🞭
Can include several different species

4. Ecosystem

🞭
All living and nonliving things in an area(life forms,
Temp., pH, gas levels, light)

5. Biome

🞭 A group of like ecosystems

6. Biosphere

🞤 The entire area on Earth where life exists

CP2Q: Give an example of an ecological community

5 LEVELS OF ORGANIZATION IN THE
ENVIRONMENT:

1. Organism

2. Population

3. Community

4. Ecosystem

5. Biome

6. Biosphere

Organism

🞭 Habitat – where an

organism lives
🞭 Includes all necessary

resources

🞭 Think smaller version of

an ecosystem but
specific to an individual

CPQ3: Describe your habitat

RESOURCES

🞭 Energy and materials needed for survival

CPQ4: What kinds of things are
considered resources for you?

Checkpoint #5

Geologic features (such as mountains) are an important factors that can determine type of ecosystem or biome.

a. Is this a biotic or abiotic factor?

a. Would you consider them a resource?

Why or why not?