Ecology Quiz 1

What is the original source of almost all energy in most ecosystems?

• carbohydrates
• sunlight
• water
• carbon

which symbiosis is this 

• parasitism 
• mutualism
• commensalism
• nonalism 

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

The image provided is an example of a(n):

• Carnivore
• Herbivore
• Producer
• Autotroph

The image provided is an example of a(n):

• Producer
• Autotroph
• Consumer
• Insect

The nonliving aspects of an ecosystem.

• Abiotic factors
• Biotic factors

The living portions of the ecosystem.

• Biotic factors
• Abiotic factors

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

A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.

• Population
• Community
• Habitat
• Ecosystem