Ecology Pretest

All of the living and nonliving things in an area that interact with each other are called a/an ______.

• community
• habitat
• population
• ecosystem

The non-living parts of the ecosystem are called:

• Abiotic 
• Biotic

Where does most of the energy that moves through an ecosystem come from originally?

• carbohydrates
• sunlight
• water
• carbon

The living parts of the ecosystem are called:

• Biotic factors
• Abiotic factors

An organism that can make its own food is called:

• heterotroph
• consumer
• detritivore
• autotroph

The picture shows a type of consumer called a(n):

• Carnivore
• Herbivore
• Producer
• Autotroph

A symbiotic relationship in which both organisms benefit (are helped) by living together

• competition
• mutualism
• commensalism
• energy pyramid

The mosquito and a human show a type of symbiotic relationship called:

• mutualism
• commensalism
• parasitism
• niche

The bear in the picture is an example of a(n):

• Producer
• Autotroph
• Consumer
• Insect

Organisms, such as bacteria and fungi, that get energy from breaking down dead plants and animals and returning the nutrients back to the soil .

• Producers
• Decomposers
• Autotrophs
• Carnivores