Ecology I

A relationship between two organisms in which one organism benefits and the other is unharmed...

• Mutualism 
• Competition
• Parasitsm 
• Commensalism 

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Mockingbirds will push the eggs out of a blue bird's nest and use the nest for it's own babies illustrating...

• commensalism

• parasitism

• mutualism

• predation

A relationship between two organisms

• Mutualism

• Symbiosis

• Parasitsm

• Commensalism

When a pine tree grows real tall and blocks sunlight to another pine tree it is _______ competition.

• Interference
• Intraspecific
• Interspecific
• Exploitative

Which of the following is NOT a form of symbiosis?

• Mutualism
• Commensalism
• Parasitism 
• Predation

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

An ecosystem is an interaction of biotic and abiotic factors

• TRUE

• FALSE

Intraspecific relationships

• They are characterized by being composed of individuals of the same species.

• They are composed of individuals of different species

• They are composed of groups

Example of an abiotic factor:

• plants

• water

• animals