COMMUNITY INTERACTIONS Name ______Per ______

Part A: MUTUALISM, PARASITISM, COMMENSALISM AND MORE

Directions:

1)  Use each image or media clip and examine the organisms in different relationships.

2)  Write down the organisms participating and a brief statement about what they are doing.

3)  Decide who is benefitting from the relationship and write the name of the organism in the appropriate column. Determine if any organism is harmed, or unaffected and write the name in the appropriate column. If there is no organism benefitting from the relationship, write “none” in the column.

4) Finally determine the “Type of Relationship” and “Importance” for each media clip.

Example / Organisms in the relationship / Explain the relationship / Who is benefitting? + / Who is harmed?
- / Who is unaffected? 0 / Type of Relationship / Importance
Coral Reef / Clownfish
Sea Anemone / Clownfish live inside sea anemone tentacles / Clownfish gets protection
Anemones get cleaned, predators scared away, and increased respiration / Mutualism / Help balance coral reef
Epiphytes
Acacias
Strangler Figs
Nutcrackers
Body Invaders
Lichens

Part B: Symbiotic Relationships

Directions:

1) Identify the organisms participating in a symbiotic relationship and whether the organism benefits, is harmed, or is unaffected.

2) Name the type of symbiotic relationship experienced between the organisms.

/ These beautiful understory plants have brightly-colored flowers in the shape of tubes. This particular form of flower is often associated with pollination by hummingbirds. These flowers are often home to hummingbird mites, tiny animals related to spiders, which hitch rides from flower to flower in the nostrils or mouth of the hummingbird as it flies. The mites feed on the flower nectar and mate in the folds of the flower.
Relationship #1 / Organism #1 Name: / Organism #2 Name: / Type of Symbiosis:
Benefit, Harmed, Unaffected: / Benefit, Harmed, Unaffected:
Relationship #2 / Organism #1 Name: / Organism #2 Name: / Type of Symbiosis:
Benefit, Harmed, Unaffected: / Benefit, Harmed, Unaffected:
Relationship #3 / Organism #1 Name: / Organism #2 Name: / Type of Symbiosis:
Benefit, Harmed, Unaffected: / Benefit, Harmed, Unaffected:

Think about the relationship between the hummingbird and the mite. Explain the importance of this relationship to the ecosystem.

Think about the relationship between the hummingbird and the flower. Explain the importance of this relationship to the ecosystem.

Think about the relationship between the flower and the mite. Explain the importance of this relationship to the cloud forest ecosystem.

TYPES OF SYMBIOSIS à Put the letter (M,C,P) by the statement that best describes the type of symbiosis described.

____ 1. A tick living on a dog.

____ 2. The honeyguide bird leading the honey badger to the bees hive, both eat the honey.

____ 3. A tapeworm living in a HHS student’s intestines.

____4. A bird building their nest in a tree.

____ 5. The hermit crab carrying the sea anemone on its back.

____ 6. The bristle worm living with the hermit crab.

____ 7. Head lice living on a human scalp.

____ 8. Mistletoe putting its roots into its host tree.

____ 9. The egret, an insect eating bird, graze near some herbivores mouth.

____10. Bacteria living on a humans skin.

____11. The remora hitching a ride on a shark.

____12. Barnacles living on a whale.

____13. Bees and a flower.

____14. Bacteria living in the intestines of a cow to help it break down cellulose.

____15. The clownfish and the sea anemone.

____16. Mrs. Perry and her dogs, Cooper and Diego.

____17. The Rhino and the tick bird.

____18. A cuckoo bird lays her eggs in another bird’s nest. She then abandons her eggs and relies on the nest builder to care for her young.

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