Biotic Vs. Abiotic Factors

Which is a biotic factor that could affect an ecosystem?

• dust storms moving through an ecosystem

• bacteria harming the health of organisms in an ecosystem

• large amounts of acid rain precipitation seeping into the soil in an ecosystem

• high levels of carbon dioxide entering the atmosphere within an ecosystem

Which interaction of a biotic and an abiotic factor can help stabilize a forest area in North Carolina?

• increased precipitation, reducing soil erosion in the area

• increased decaying organic material, adding nutrients to soil in the area

• decreased water salinity, reducing biodiversity of animals in the area

• decreased number of predators, allowing the number of prey to increase in the area

Which of the following best describes abiotic factors? 

• All of the animals in an environment.
• All of the living things in an environment.
• All of the nonliving things in an environment.
• All of the bacteria in an environment

Which of the following best describes biotic factors? 

• All of the animals in an environment.
• All of the living things in an environment.
• All of the nonliving things in an environment.
• All of the bacteria in an environment

Which of the following is a type of biotic factor? 

• The types of minerals
• The level of pollution
• The spread of bacterial infection
• The amount of impervious cover

Which of the following is a type of biotic factor? 

• The amount of sunlight
• The level of rainwater
• The amount of grass growing
• The type of soil

Which of the following is a type of abiotic factor? 

• The average temperature
• The number of prey animals
• The type of bacteria in the soil
• The number of bees pollinating flowers

Temperature

• Abiotic

• Biotic

Light

• Abiotic

• Biotic

Wind

• Abiotic

• Biotic