1. a SHREW

2. SYMBIOSIS Two species living together in close association.
(Also called “symbiotic relationships”)

3. 3 TYPES OF SYMBIOSIS
1. PARASITISM
2. COMMENSALISM
3. MUTUALISM

4. What happens in the relationship for the different kinds of symbiosis?
Commensalism
Mutualism
Parasitism
one organism benefits
one organism is unaffected
+,0
one organism benefits
one organism is harmed
+,-
both organisms benefit
+,+

5. PARASITISM
A symbiotic relationship where the organism lives in or on their host and does harm to their general well being, sometimes parasites are fatal.
The parasite benefits, the host does not.

6. Ticks

7. LEECHES

8. Taenia worm in human eye
Worm infects human blood stream Human may go blind
Parasitism: one benefits, one is harmed

9. Parasitic Marine Isopods
Some Marine Isopods attach themselves to fish like ticks and suck blood from their hosts.
Parasitism: one benefits, one is harmed

10. mistletoe

11. Rafflesia
Rafflesia sp., the world’s largest flower, lives off of tropical vines in tropical South-east Asian rainforests. It lacks leaves, roots, and shoots.

12. Strangler Fig

13. MUTUALISM
A symbiotic relationship where both organisms benefit from the relationship.

14. Mutualism: both benefit
Moray Eel with Cleaner Fish
Moray Eel gets a clean mouth Cleaner Fish gets a meal
Mutualism: both benefit

15. Mutualism: both benefit
Antelope with Oxbird
Antelope gets rid of parasites Oxbird gets a meal
Mutualism: both benefit

16. Pollinators and Pollinatees

17. Lichens

18. Corals & Zooxanthellae

19. Trichonympha protozoan (a flagellate) that lives in the termite gut.

20. mycorrhizal fungi extending from a plant's roots illustrate this symbiotic relationship, dramatically increasing a plant's ability to collect moisture and nutrients

21. COMMENSALISM
A symbiotic relationship where one species benefits, the other is not affected positively or negatively.

22. Birds nesting in a tree

23. Cattle with cattle egrets
Cattle stir up insects as they eat grass Egrets hang around and eat insects
Commensalism: one benefits, one is unaffected

24. Neotropical Antbirds
Antbirds follow army ants as they travel across the jungle flow stirring up insects. The birds swoop down and eat the bugs that are ‘escaping’ the ants.

25. Certain species of millipede and silverfish inhabit the nests of army ants and live by scavenging on the refuse of their hosts, but without affecting the ants.

26. Clown fish with anemone
Clown fish gets protection Anemone is unaffected- some argue that the anemone does have a benefit
Commensalism: one benefits, one is unaffected or Mutualism: both benefit

27. Epiphytes

28. leopard shark with a remora

29. Hermit Crab