Biology One
Guided Notes Packet
Chapter 20-22
Chapter 20 – Community Ecology
20.1 – Species Interactions
Predation –
1. Mimicry:
2. Secondary Compounds:
Competition:
Competitive Exclusion:
3. Other:
Predator / Prey
Adaptations
Biology One
Guided Notes Packet
Resource Partitioning:
Chapter 20-22
Character Displacement:
2 Means to
Reduce
Competition
Symbiosis
1. Parisitism:
2. Mutualism:
3. Commensalism:
Examples: (draw an arrow to the appropriate box above)
a. TICKS live and feed on other animals. They suck blood and transmit diseases
b. SNAPPING SHRIMP have poor vision. They depend on their goby fish roommate to give danger
signals when predators approach. Goby fish room with the shrimp so they have a place to hide.
Your Examples:
Parisitism Example
Mutualism Example
Commensalism Example
Biology One
Guided Notes Packet
20.2 Properties of Communities
Species-Area Effect:
Species Richness:
Stability:
Succession:
Primary Succession:
Secondary Succession:
Pioneer Species:
Biome Chart – Chapter 21
Climax Community:
Chapter 20-22
Biology One

Guided Notes Packet
Complete the following chart during student group presentations or gather information from your book to complete
each section as needed (chapter 21)

Terrestrial
Biome
Tundra
Taiga
Temperate
Forest
Tropical
Forest
Temperate
Grasslands
Chapter 20-22
Vegetation
You will turn in your completed chart for a grade
Animals
Location &
Temperature
Soil
Type
2 Facts
Biology One
Guided Notes Packet
Chapter 20-22
Savanna
Desert
Chaparral
Aquatic
Biome
Ocean:
Intertidal
Zone
Ocean:
Neritic Zone
Ocean:
Oceanic Zone
Vegetation
Animals
Location &
Temperature
Soil
Type
2 Facts
Biology One
Guided Notes Packet
Estuaries
Freshwater:
Lakes &
Ponds
Freshwater:
Streams &
Rivers
Freshwater
Wetlands
Chapter 22 – Human Impact on the Environment
Biodiversity
Measured By
Chapter 20-22
Biology One
Guided Notes Packet
Human Influence
Biomagnification
Chapter 20-22