1. Warm-up (9/3)
Please take a pink sheet from the student desk (front of the room).
In your composition book EXPLAIN competition and predation. Provide examples if necessary.

2. Community Interaction

3. Competition Review What is it?
More than one organism uses the same resource at the same time.
*Competing for same resources*
Example
Niche competition

4. Predation Review What is it?
When one organism hunts and kills another.
Predator vs. Prey
Predator: The attacker
Prey: The attacked—dead
Prey Adaptations
Morphological features (Camouflage, spines, mimicking, etc.)
Chemical Defenses
Behavior (living in groups, scouts, alarm calls)
Caterpillar with Venomous Spines
Meerkat’s have specific behavior and morphological features to protect them from predators

5. Predation Review Examples Lion and Zebra Grey Wolf and Elk
Orcas and Seals

6. Part 1 Review: Organisms and their Relationships
Symbiosis
Symbiosis: The relationship that exists when two or more species live together in which at least one species benefits.
Types of Symbiosis:
Mutualism
Commensalism
Parasitism

7. Symbiotic relationships
Part 1: Organisms and their Relationships
Symbiotic relationships
Mutualism: When both organisms benefit
Lichens
Commensalism: One organism benefits, while the other is neither helped nor harmed.
Epiphytes (i.e., Bromeliads)
Parasitism: One organism benefits at the expense of the other.
Parasitoid wasp eggs on a tomato hornworm

8. Mutualism
A relationship in which BOTH SPECIES BENEFIT

9. Commensalism
A relationship in which ONE SPECIES BENEFITS and the other is NOT AFFECTED (Not helped or harmed)

10. Parasitism
A relationship in which ONE SPECIES BENEFITS and the other is HARMED OR KILLED

11. Create and Fill in this table
Part 1 Reflection: Organisms and their Relationships
Create and Fill in this table
Type of Relationship
Species harmed
Species benefited
Species neutral
Mutualism
Commensalism
Parasitism
= 1 species

12. Mistletoe and Spruce Tree
Mistletoe extracts water and nutrients from the spruce tree, harming it

13. Honey Guide Bird and Badger
Honey guide birds alert and direct badgers to bee hives. The badgers expose the hives and feed on the honey first, then the honey guide bird gets to eat.

14. Cowbird and Bison
As buffalos walk through the grass, insects become active and are eaten by the cowbirds

15. Ostrich and Gazelle
Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Since their visual abilities are different, each can identify threats that the other might not detect.

16. Remora and Shark
Remoras attach themselves to a shark’s body. They then travel with the shark and feed on the shark’s leftover food scraps

17. Oxpecker and Rhinoceros
Oxpeckers eat the ticks from the rhino’s body.

18. Bee and Maribou Stork
The stork uses its saw-like bill to cut up dead animals to eat. The bees then use the dead animal’s body for food and to lay eggs

19. Mouse and Flea
A flea feeds on the mouse’s blood, which harms it.

20. Silverfish and Army Ants
Silverfish live and hunt behind the army ants, and share the prey.

21. Wrasse Fish and Black Sea Bass
Wrasse fish feed on the parasites found on the black sea bass’ body

22. Hermit Crab and Snail Shell
Hermit crabs live in shells made and then abandoned by snails

23. Deer and Tick
Ticks feed on the deer’s blood, which harms it.

24. Barnacle and Whale
Barnacles attach themselves to the whale’s body, creating a traveling home.

25. Yucca Plant and Yucca Moth
Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers and eat the seeds.