1. Symbiosis
A relationship in which organisms live Together and at least one is benefited

2. Mutualism: a type of relationship in which both organisms benefit.
Comensalism: a type of relationship in which one organism is helped and the other is not helped or harmed.
Parasitism: a type of relationship in which one organism is helped and the other is harmed.

3. Predation: An interaction in which one organism hunts and kills another for food.

4. OXPECKER
CORN
FLOWER
BLUE WHALE
LION
BIRD
BEE
TICK
HUMAN
RHINO
KRILL
POISON IVEY
DOG
MOUSE
PENGUIN
ANTELOPE
COW
BEAR
TREE
FISH
BARNACLE
OWL
MOSQUITO

5. RELATIONSHIPS FOLDABLE MUTUALISM COMMENSALISM PARASITISM PREDATION
The center smile is shared by all relationships reminding us of the definition of symbiosis which is a relationship in which organisms live together and AT LEAST ONE is benefited.

6. MUTUALISM COMMENSALISM PARASITISM PREDATION RELATIONSHIPS FOLDABLE
(inside)
MUTUALISM
Write the Definition
COMMENSALISM
PARASITISM
Write the Definition
Write the Definition
Write the Definition
PREDATION

7. Relationships: Watch a Clip &Predict Interacting Species Pair
Ecological Relationship Prediction
(predation, competition, commensalism, mutualism, parasitism)
Actual Ecological Relationship
(name and describe)
Clip 1:
Tiger Shark/ Loggerhead Turtle
Clip 2:
Shark/Jack
Shark/Mackerel
Shark/Shark Suckerfish
Hammerhead Shark/Barberfish
Clip 3:
Shark/Fishermen

8. Relationships: Watch a Clip &Predict
QUESTION PAGE
Clip 1: Shark and Turtle
How does the turtle protect itself?
What relationship is held between the tiger shark and the loggerhead turtle?
Clip 2: Unlikely Travel Companions
List three ways in which being near a shark might be beneficial to a fish.
What is one way that a shark might benefit from a fish (other than as prey)?
Classify each shark-fish relationship shown in this clip as commensalism, mutualism, or parasitism.
Clip 3: Sharks and Fishermen
How have sharks become trained to follow fishermen?
Describe how the following species pairs interact in the clip: fishermen/fish; sharks/fish; sharks/fishermen.

9. Name____________________________Date____________
12. The sea lamprey uses its oral disc to attach itself to a larger fish, bores a hole through the fish’s flesh, and sucks its blood.
8. Orchids perch on sturdier plants. They cause no harm to the host plant. They benefit simply from being exposed to sunlight.
16. The shrimp digs to burrow itself and the goby fish. In case of danger, the goby fish touches the shrimp with its tail to warn it.
22. The Nile crocodile, with its mouth open, permits the Egyptian plover bird to feed on any leeches attached to its gum.
30. Torsalo flies catch smaller flies so they can glue their eggs on them. The captive flies are released unharmed, but carry the eggs until they land on a host
7. Insects get nectar from flowers. They also transfer the pollen that gets stuck in their bodies to another flower.
19. A remora fish attaches itself to sharks. When the shark eats, it eats the scraps. The shark does not harm the remora fish.
11. Many bacteria live in the human intestines. These bacteria feed on the food in our guts without harming us.
17. Dodder plants have root like structures that penetrate the vascular bundles of other plants to get nutrients..
Instruction: Classify the interaction of living things being described by filling the blanks with: commensalism, competition, mutualism, parasitism, or predation.
1. Fungus and lichens live together. The fungus gets food from the algae while the algae gets a place to live.
2. The parasitic roundworm anchors itself to the wall of the intestine and causes diseases to the organisms.
9. The waste plant sap produced by aphids are used by ants for nutrition. The ants protect the aphids from parasites.
10. An oyster attaches itself to a mangrove. The oyster has a place to live, but the mangrove is unharmed.
28. A tomato hornworm is covered with cocoons of pupating beaconed wasps. It dies as the wasps pupate.
Interaction of Living Things (Biotic/Symbiotic Relationships) Spinwheel Worksheet
27. The territorial clownfish lives in sea anemones. They protect each other from their predators.
18. Hermit crabs use gastropod’s shells to protect their bodies without being harmed.
20. Amoeba in humans causes infection that leads to liver abscesses and dysentery.
24. Yellow rattle plant gets some of its nutrients from the roots of neighboring plants.
25. Ten tomato plants are grown in one small pot with limited amount of soil.
29. A short plant receives less sunlight because it is shaded by a tall plant.
5. Two angelfish are struggling for the best territory in a small fishbowl.
21. Ticks attach firmly to the skin of other animals to draw blood.
3. Spiders create their webs on stems and trunks of plants.
15. Chimpanzees fight to achieve supremacy in the tribe.
6. Cheetahs and lions feed on the same prey.
4. A mouse is captured and eaten by an owl.
14. A snake catches and swallows a frog.
23. A fly is trapped in a spider’s web.
26. A frog catches a grasshopper.
13. A lion devours a deer.