LESSON 3: SYMBIOSIS AND RELATIONSHIPSWHEN 2 ORGANISMS INTERACT IN AN ECOSYSTEM

With symbiosis, 1 organism ALWAYS benefits from the relationship.

Why else would you have a relationship if somebody wasnt getting something out of it?

HOW DO THE VENOM ALIEN AND EDDIE BROCK WORK TOGETHER? WHOS GETTING WHAT?

MUTUALISMWHEN BOTH ORGANISMS BENEFIT IN A RELATIONSHIP

Checkout the clownfish and sea anemone below. The clownfish benefits because it receives a safe place to live. The sea anemone benefits because the clownfish brings it food.

Both Benefit!

COMMENSALISMWHEN 1 ORGANISM BENEFITS IN A RELATIONSHIP AND 1 ORGANISM IS UNAFFECTED

Checkout the remora and manta ray below. The remora uses a suction cup to attach to a ray and get a free ride, and it is too small to bother the ray. The manta ray could care less.

PARASITISMWHEN 1 ORGANISM BENEFITS IN A RELATIONSHIP AND 1 ORGANISM IS HARMED

Look at this head louse below, sucking the blood out of a humans head. The louse benefits from the relationship because it is getting food (blood). The human is harmed.

When Spider-Man was wearing the black suit, it was turning him into a darker, meaner person while feeding on his brain. What type of symbiosis would this be? MutualismCommensalismParasitismCommunismC. Parasitism

[Default][MC Any][MC All]

PREDATION (Predator/Prey)WHEN 1 ORGANISM CONSUMES ANOTHER FOR ENERGY

The lion below is enjoying the Laws of Conservation of Energy as chemical energy from the wildebeest is transformed into energy for his body.

COMPETITIONWHEN 2 OR MORE ORGANISMS STRUGGLE OVER AVAILABLE RESOURCES

A hole in a jungle canopy has several species of plants rushing to fill in the gap sunlight is rare at the rainforest floor and plants fight over it.

Limiting FactorAn environment factor that prevents an organism or population from reaching its full potential of size or activity.

EstuaryAn area where fresh water mixes with salt water from the ocean.

WetlandAn area of land that is periodically underwater or whose soil contains a great deal of moisture.

Coral Reef A limestone ridge found in tropical climates and composed of coral fragments that are deposited around organic remains.

In Review.MUTUALISMCOMENSALISMPARASITISMPREDATIONCOMPETITION

BOTH BENEFITONE BENEFITS/ONE UNHARMEDONE BENEFITS/ONE HARMEDPREDATOR/PREYSTRUGGLE FOR FOOD,WATER, MATE, LAND ETC.

Essential QuestionsPick two of the following questions and write the number and the answer at the bottom of the back of your notes.

1. How do symbiotic relationships provide an advantage when organisms compete with each other in nature?2. How can the relationships between organisms be classified as mutualism, commensalism, parasitism, and competition?3. How can examples of mutualism, commensalism, and parasitism be identified based on their interactions with another organism?4. How do limiting factors affect Florida's ecosystems?