Lesson 27 Ecosystem Factors and Relationships

Which level of organization is a heard of buffalo?

• Species
• Population
• Community
• Organism

Which level of organization includes all of the living and non-living things in a pond?

• Ecosystem
• Community
• Population
• Biome

Which level of organization includes all of the animal populations living in the African Savannah?

• Population
• Species
• Community
• Ecosytem

In which type of relationship does an American Robin build a nest in a Red Maple tree?

• Parasitism
• Mutualism
• Predation
• Commensalism 

In which type of relationship does a tick make its home on a White-tailed Deer?

• Parasitism
• Mutualism
• Predation
• Commensalism 

A Nile crocodile will open its mouth and allow the Egyptian plover to feed on any leeches that are attached to its gums.  Which type of relationship is this?

• Parasitism
• Mutualism
• Predation
• Commensalism 

In which type of relationship does a Red Fox hunt and consume a Black Rat Snake?

• Parasitism
• Predation
• Commensalism
• Mutualism

A certain type of paramecium engulfs unicellular green algae into vacuoles within its cell.  The algae are allowed to utilize carbon dioxide produced by the paramecium and the paramecium is able to utilize food produced by the algae.  Which type of relationship is this?

• Commensalism
• Parasitism
• Predation
• Mutualism