1. Ecology
1/22-23/2013

2. AgSE
Tuesday, January 22, 2013
Objective -
Big Question
I will be able to:
Demonstrate and identify the energy flow of living orgaisms
Evaluate the efficiency of energy transfer among organisms in and ecosystem
Language Objective
I will read each test question and answer it to the best of my ability.
Bell work
What are the 3 types of symbiotic relationships among organisms?
# of Days
1 day
Vocabulary
Core Concepts
Ecology
Biosphere
Ecosystem
Community
Population
Organism
Habitat
Abiotic
Acclimation
Regulators
Parasitism
Commensalisms
Niche
Biotic
Conformer
Predation
Mutualism

3. What are producers?
Producer – Organism that takes non-living matter (energy from the sun, water, minerals, carbon dioxide) and uses it to produce food (energy) for itself with surplus for other organisms. Example – plants

4. What are consumers?
Consumer – Does not produce own food. Must eat producers or other consumers for energy.
Example – animals

5. What are decomposers?
Decomposer – Organism which feeds off dead plants and animals and reduces their remains to minerals and gases again. Examples – worms, bacteria

6. What is a food chain?
Food chain – Series of steps by which energy is obtained, used, and changed by living things. Example – sunlight helps grain to grow, the grain feeds cattle, and humans eat the cattle

7. What is a carnivore? Example: Lion, Tigers, Eagle, Crocs
Consumer that eats other consumers
Example: Lion, Tigers, Eagle, Crocs

8. What is an Herbivore? Consumer that eats on producers
Example: Koala Bear only eat Eucalyptus leaves

9. What is an Omnivore? Consumer that eats both consumers and producers
Example: People eat both Meat and Vegetables

10. What is a primary Consumer or 1st level?
an organism that gets its energy from producers (plants).  These are often called herbivores.
Cows, deer, insects, rodents

11. What is a secondary consumer or 2nd level?
An organism that gets its energy from other consumers. Often carnivores
Example: Shrews, Frog, small fish

12. What is a tertiary consumer or 3rd level?
An organism typically eats other 2nd or 1st level consumers
Can sometimes be a top predator
Example: Large fish, snakes

13. What is a quaternary consumer or 4th level?
Top consumer that typically eat 3rd level consumers for energy
Typically has no natural predators
Example: Lion, hawk, killer whale

14. What is a food web?
Food webs – feeding relationships among the various organisms in an ecosystem forming a network of complex interactions linking all the food chains together.
Example on board ( draw on board)
Grass
Rabbits, grass hoppers
Birds, shrew, harvest mouse