6.1 Ecological Relationships

An ecological symbiotic relationship between two organisms where one benefits and the other is harmed…

• Mutualism

• Commensalism

• Parasitism

• Symbiosis

What is the general term used to describe the interaction between two different organisms that are living in close physical association?

• Community

• Symbiosis

• Population

• Commensalism

The term used to include all of the living things PLUS all the non-living things together in a specific environment...

• Niche

• Population

• Community

• Habitat

This is the job or role of a specific organism within its habitat...

• Niche

• Prey

• Keystone Species

• Abiotic Factors

 

A pilot fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:

• Mutualism

• Commensalism

• Decompisition

• Parasitism

 

A feeding relationship where one organism hunts and one is hunted, such as a Lynx hunting a snowshoe hare, is known as:

• Predator-Prey

• Habitat

• Niche

• Mutualism

Which of the following is true about competition?

• Controls population size
• Ensures everyone eats
• Keeps everyone happy
• Is only between 2 organisms

What statement is TRUE about the graph?

• The prey is the green line because there needs to be more prey than predators.

• The prey is the red line because there needs to be more predators than prey.

• The green line is the producers

• The red line is the producers

Predator population lags behind prey population because......

• Increase in predators leads to decrease in prey

• Increase in predators leads to increase in prey

• Increase in predators leads to decrease in producers

• Increase in producers leads to increase in prey

How does the predator-prey relationship affect a population?

• The predators and prey are in competition with each other.

• Usually either the predator or the prey will become extinct.

• The predator species usually has exponential growth.

• The relationship controls the population size of both species.