Biotic and Abiotic Factors

Objectives #4 and #5 will be done throughout the unit when you work on your project.

Multiple Choice

Which of the following is an example of an abiotic factor in an ecosystem?

• A tree

• A rabbit

• Sunlight

• A mushroom

Multiple Choice

Which of the following is an example of a biotic factor in an ecosystem?

• Sunlight

• Soil

• Bacteria

• Moisture

Multiple Choice

Which of the following is NOT an abiotic factor in an ecosystem?

• Sunlight

• Water

• Elephant

• Temperature

Multiple Choice

What are the abiotic factors in this image? 

• water, sunlight, soil, air

• birds and plants
• water, plants, and birds 

Multiple Select

Which of the following are examples of abiotic factors in an ecosystem?

• Water

• Sunlight

• Temperature

• Bacteria

Hotspot

click all hotspots that are biotic.

​bio = living
diversity = variety

Multiple Choice

Which of the following statements about biodiversity is correct?

• Biodiversity refers to the variety of living things in an ecosystem.

• Biodiversity is higher in deserts than in rainforests because more species are required to hold moisture.

• Biodiversity only includes plants and animal species.

• Biodiversity does not affect ecosystems very much.

Multiple Choice

Which organisms are classified as autotrophs?

• Plants

• Animals

• Fungi

• Most Bacteria

Open Ended

Describe the role of autotrophs in the flow of energy within an ecosystem.

​Habitat and Niche

​All of the 5 species of birds seen in this image live in the same habitat but have different niches because they find food in different areas.

Multiple Choice

Which of the following best describes the difference between a habitat and a niche, as shown in the diagram?

• A habitat is where an organism lives, while a niche is the role it plays in its environment.

• A habitat is the food an organism eats, while a niche is its predator.

• A habitat is the climate, while a niche is the weather.

• A habitat is the population size, while a niche is the competition that exists in the environment.