BIOLOGY
Unit 10 Ecology Objectives
Name:_________________________
1. Explain why two species cannot occupy the same niche in a community.
2. Identify and describe symbiotic relationships and explain their importance in food
webs and ecosystems.
3. Describe predator/prey relationships.
4. Predict how the use and flow of energy will be altered due to changes in a food web.
5. Identify abiotic and biotic limiting factors and their effects on growth in ecosystems.
6. Explain how the carrying capacity of a species is the population size that an
ecosystem can sustain based on available resources.
7. Explain the processes and importance involved in the cycling of water, nitrogen,
oxygen, and carbon through an ecosystem.
8. Explain how some pollutants are biologically magnified in food webs.
9. Describe how the human population has changed in the last century and the effects of
these changes.
Essential Vocabulary
Producer
Parasitism
Predator
Consumer
Niche
Prey
Herbivore
Habitat
Food Web
Carnivore
Abiotic
Energy Pyramid
Omnivore
Biotic
Biological magnification
Symbiosis
Population
Carrying capacity
Mutualism
Community
Limiting factor
Commensalism
Ecosystem
Biotic potential
BIOLOGY
Unit 10 Ecology Notes
Name:_________________________
Population:
Community:
Habitat:
Ecosystem:
Obj. 1: Explain why two species cannot occupy the same niche in a community.
Niche:
Examples of the components of a niche:
Obj. 2: Identify and describe symbiotic relationships and explain their importance in
food webs and ecosystems.
Symbiosis:
Symbiotic
Relationship
Definition
Commensalism
Mutualism
Parasitism
Obj. 3: Describe predator/prey relationships.
.
Organism 1
Organism 2
Obj. 4: Predict how the use and flow of energy will be altered due to changes in a food
web.
Producer:
Consumer:
Primary:
Secondary:
Tertiary:
Food Web:
Energy Pyramid:
10% Rule:
Obj. 5: Identify abiotic and biotic limiting factors and their effects on growth in
ecosystems.
Abiotic:
Biotic:
Obj. 6: Explain how the carrying capacity of a species is the population size that an
ecosystem can sustain based on available resources.
Carrying capacity:
Limiting factor:
Biotic potential:
Obj. 7: Explain the processes and importance involved in the cycling of water, nitrogen,
oxygen, and carbon through an ecosystem.
The Water Cycle
Evaporation:
Condensation:
Precipitation:
Transpiration:
The Carbon Cycle
The Oxygen Cycle
The Nitrogen Cycle
Obj. 8: Explain how some pollutants are biologically magnified in food webs.
Biological magnification: