Ecology Review

A living or once-living organisms in an ecosystem is a

• population
• biotic factor
• abiotic factor
• community

A nonliving element in an ecosystem is an 

• animal
• abiotic factor
• biotic factor
• organism

Which of the following is not an abiotic factor?

• sun
• temperature
• soil
• grass

Tags

NGSS.MS-LS2-3

Which of the following is not a biotic factor?

• mushroom
• air
• elephant
• coyote

Lizards and cacti are biotic factors in a desert ecosystem that would rely on which abiotic factors?

• insects and sun
• water and insects
• snakes and temperature
• water and soil

Nonliving elements in an ecosystem are called _______________. 

• biotic factor
• abiotic factor
• limiting factor
• carrying capacity 

Is a deer an abiotic or biotic factor? 

• abiotic
• biotic

Is a weather an abiotic or biotic factor? 

• abiotic
• biotic

Is sunlight an abiotic or biotic factor? 

• abiotic
• biotic

Water, air, soil, and temperature are all examples of __________ factors.

• abiotic
• organisms
• biotic
• population