1. Types of Relationships
Can you categorize relationships between organisms that are competitive or mutually beneficial?

2. Competition When two or more individuals or populations try to use
the same resource

4. Symbiotic Relationships

5. Symbiosis a relationship in which two different organisms live in
close association with each other

6. SYMBIOTIC RELATIONSHIPS
a relationship in which two different organisms live inclose association with each other
HOST- usually the LARGER of the 2 organisms
SYMBIONT- usually the SMALLER member

7. Commensalism
a relationship between two organisms in which one organism benefits and the other is unaffected

8. Mutualism a relationship between two species in which both species
benefit

9. Parasitism a relationship between two species in which one species,
the parasite, benefits from the other species, the host,
which is harmed

10. Let’s Practice…

11. EXTRA PRACTICE ACTIVITY
In the following activity, you will be given a picture scenario. Identify and select the symbiotic relationship (parasitism, mutualism, or commensalism) represented in the picture.
EXIT

12. SLIDE NAVIGATION INSTRUCTIONS
ADVANCE TO NEXT SLIDE
RETURN TO PREVIOUS SLIDE
GET HELP, DEFINITION
QUIT ACTIVITY
EXIT

13. In this photo the “cleaner fish” receives nourishment by dining off of the parasites and remaining food debris in the eel’s mouth. Is this an example of…
PARASITISM
MUTUALISM
COMMENSALISM
HELP
EXIT

14. That’s CORRECT! Keep up the great work!
EXIT

15. SORRY MAN, TRY AGAIN
SORRY MAN, TRY AGAIN
EXIT

16. PARASITISM COMMENSALISM MUTUALISM HELP EXIT
Clownfish are frequently found in the tentacles of sea anemones. Sea anemones capture their prey by paralyzing them with their tentacles. However, the clownfish produces a mucus that prevents the tentacles from harming it. By dwelling amongst the tentacles the clownfish receives a protected home. This relationship is an example of …
PARASITISM
COMMENSALISM
MUTUALISM
HELP
EXIT

17. SORRY MAN, TRY AGAIN
EXIT

18. That’s CORRECT! Keep up the great work!
EXIT

19. The birds in the picture are munching on tiny parasitic insects located on the rhino. The relationship between the birds and the rhino is an example of…
PARASITISM
MUTUALISM
COMMENSALISM
HELP
EXIT

20. SORRY MAN, TRY AGAIN
EXIT

21. That’s CORRECT! Keep up the great work!
EXIT

22. PARASITISM MUTUALISM COMMENSALISM EXIT
Lampreys are primitive fish with limited digestive systems. They attach to and feed on the body fluids of fish with more advanced digestive systems, often leading to the death of the host fish. This relationship is an example of…
PARASITISM
MUTUALISM
COMMENSALISM
HELP
EXIT

23. SORRY MAN, TRY AGAIN
SORRY MAN, TRY AGAIN
EXIT

24. That’s CORRECT! Keep up the great work!
EXIT

25. PARASITISM MUTUALISM COMMENSALISM EXIT
Orchids grow on the branches of high trees. These orchids get more water and sunlight than those on the ground. The tree is unaffected by the orchid’s presence. This relationship is an example of…
PARASITISM
MUTUALISM
COMMENSALISM
EXIT
HELP

26. SORRY MAN, TRY AGAIN
SORRY MAN, TRY AGAIN
EXIT

27. That’s CORRECT! Keep up the great work!

28. THE END
EXIT