A group of individuals belonging to the same species living in the same general area at the same time.

• population

• community

• ecosystem

• biosphere

Number of individuals per unit area or volume.

• denisty

• dispersion

• survivorship

• immigration

Green plants are

• producers
• consumers
• herbivores
• omnivores

symbiotic relationship in which both organisms benefit

• competition
• Mutualism
• nitrogen fixation
• energy pyramid

A living relationship between two species in which one organism is harmed is called...

• mutualism
• commensalism
• parasitism
• niche

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

• Population
• Ecosystem
• Community
• Ecosphere

Identify the symbiotic image and definition.

• mutualism
• commensalism
• parasitism
• predation

Something that controls the growth or size of a population is a 

• carrying capacity
• limiting factor
• growth factor
• limiting agent

The maximum number of organisms in a given population that an ecosystem can support

• Load Capacity
• Carrying Capacity
• Limiting Factor
• Keystone Species

Which of the following is a density independent limiting factor?

• competition
• temperature
• crowding
• disease