Ecological Relationships

What do the arrows in a food chain show

• What trophic level an organism is in

• The flow of energy

• Where an organism is going

Which of the following is NOT a trophic level

• Tertiary Consumer

• Producer

• Secondary Consumer

• Quadratic Consumer

Level 1 is called the _____________ trophic level. 

• Tertiary consumer
• Tertiary producer
• Primary consumer
• Primary producer

Trophic levels are represented by 

• squares
• circles
• pyramids
• lines

What is an "Ecological Niche"?

• The physical location where a species lives.

• The total number of species in an ecosystem.

• The process of photosynthesis in plants.

• The relational position of a species or population in an ecosystem.

Parasitism is:

• a type of relationship where both organisms benefit from each other

• a relationship in which one organism benefits at the expense of another organism.

• A relationship in which one organism benefits and the other is unaffected

• A relationship in which both organisms are harmed

What type of relationship is this?

What is Symbiosis?

• A relationship in which both species benefit from the relationship.

• A Relationship where one species benefits while the other is unaffected.

• A close, long-term association between organisms of different species

• A relationship in which one species benefits while the other is being negatively impacted by the relationship

Which of the following is NOT a relationship found in an ecosystem

• Competition
• Cooperation
• Symbiosis

• Predator-Prey

Which organisms is the Sea Duck consuming?

• Bald Eagle

• Biavalves

• Benthic Invertebrates

• Tundra Swan