Biology Quiz: Ecosystems and Organisms

What is an ecosystem?

• A type of rock formation

• A community of living organisms and their interactions with the non-living components of their environment.

• The study of ancient civilizations

• A type of computer software

Define organisms and species.

• Plants and a group of organisms capable of interbreeding

• Living things and a group of organisms capable of interbreeding

• Inanimate objects and a group of organisms with similar characteristics

• Non-living things and a group of organisms incapable of interbreeding

Explain what a habitat is and provide an example.

• An example of a habitat is a desert for polar bears.

• A habitat is a type of food that animals eat, such as grass for lions.

• A habitat is a man-made structure like a building for birds.

• An example of a habitat is a coral reef for marine organisms.

Differentiate between populations and communities in an ecosystem.

• Populations are groups of individuals of the same species, while communities are all the different populations of species that live and interact in the same area.

• Populations are groups of individuals that don't interact, while communities are groups of individuals that do interact.

• Populations and communities are the same thing in an ecosystem.

• Populations are groups of individuals of different species, while communities are all the same species that live in the same area.

List three examples of living things in an ecosystem.

• Rocks, water, air

• Cars, buildings, computers

• Plants, animals, microorganisms

• Books, pencils, paper

List three examples of non-living things in an ecosystem.

• Tree, grass, flowers

• Birds, fish, insects

• Sun, moon, stars

• Rock, water, air

What are herbivores and provide an example?

• Herbivores are animals that primarily feed on rocks. An example of a herbivore is a lion.

• Herbivores are animals that primarily feed on other animals. An example of a herbivore is a shark.

• Herbivores are animals that primarily feed on air. An example of a herbivore is a bird.

• Herbivores are animals that primarily feed on plants. An example of a herbivore is a rabbit.

What are carnivores and provide an example?

• Giraffes

• Kangaroos

• Elephants

• Lions

What are omnivores and provide an example?

• Omnivores - Example: Bears

• Omnivores - Example: Snakes

• Omnivores - Example: Elephants

• Omnivores - Example: Lions

Explain the concept of a food chain in an ecosystem.

• A food chain is a physical chain made of food items in an ecosystem.

• A food chain shows the flow of energy and nutrients from one organism to another in an ecosystem.

• A food chain is a hierarchy of restaurants in an ecosystem.

• A food chain is a type of fishing net used to catch food in an ecosystem.