1. Do Now: Take out notebook and pencil
Start a New Do Now page
At top of page write Do Nows for week of 3/5
What do you think are the different roles organisms play in an ecosystem?

2. Engage Video

3. Glue notes onto page

4. Levels of Organization in an Ecosystem
Organism- an individual form of life or species of living thing, only one Ex: one elephant

5. Levels of Organization in an Ecosystem
Populations- all of the SAME organisms of one species in an area Ex: a group of elephants

6. Community- All of the different populations of different species living in an area Ex: elephants living with zebras, giraffes, etc.

7. Ecosystem- all of the living (biotic) and nonliving (abiotic) parts in an area Ex: elephants, giraffes, grass, trees, water, oxygen, etc.

8. Factors of an Ecosystem
Biotic factors- living or once living organisms Ex: animals, plants, fungi, bacteria

9. Abiotic factors- non-living parts in an ecosystem Ex: water, air, soil, sunlight, temp

10. With a partner quickly do the following…
In your notebook make a T chart and list biotic and abiotic factors you see in the picture

11. Organism’s Role in Ecosystem
Producer- makes their own food using energy from the sun (plants)
Consumer- gets energy from eating other organisms
Third role which will be talked about next week (decomposer)

12. Organism’s Relationships in an Ecosystem
Predator-Prey- when one organism eats another organism
Predator- the organism that hunts down and eats prey Ex: cheetah
Prey- the organism that is hunted down and eaten Ex: deer
One organism benefits and the other is harmed
Cheetah
Deer

13. Competition- when two organisms, same species or different, fights over the same resource Ex: 2 hartebeest fighting over territory
One will win and benefit and the other will lose and be negatively effected

14. Symbiotic Relationships
Mutualism- a relationship where both organisms benefit, win/win, +/+
Ex: bee getting nectar from flower and spreading pollen, oxpecker eating insects off of antelope

15. Commensalism- when one organism benefits and the other is neither helped nor harmed, win/neutral, +/0
Ex: Remora fish swimming with sharks, bird nest

16. Parasitism- when one organism lives in or on another organism harming it
Parasite- organism that feeds on another organism
Host- organism that is harmed by the parasite
Win/Lose, +/-
Ex: ticks, mosquitos

17. Orchids growing high on tree limbs

18. Commensalism- because the orchids get extra sunlight to grow and the tree is not bothered

19. Octopus and Crab Video

20. Predation- because the octopus is catching, killing, and consuming the crab

21. Tapeworm in Fish

22. Parasitism- because tapeworm is benefitting by feeding on nutrients from fish and fish is harmed because it is losing nutrients

23. Vulture vs. Cheetah

24. Competition- because the vulture is taking the food from the cheetah limiting its resource of food
What about between the different vultures?

25. Clownfish feeding on small organisms that may cause harm to anemone and anemone gives clownfish a safe place to live.

26. Mutualism- because both organisms are getting something out of the relationship

27. Worksheet