Ecosystem and Interactions of Living Things Quiz

What is an ecosystem made up of?

• Only living things

• Only nonliving things

• Both living and nonliving things

• None of the above

Which of the following is biotic factor in an ecosystem?

• Plants

• Water

• Air

• Rocks

What is the special role that an organism plays in the ecosystem called?

• Niche

• Producer

• Invasive species

• Habitat

What do we call organisms that can't make their own food and need food from other sources?

• Consumers

• Herbivores

• Producers

• Carnivores

Why are predators important in ecosystems?

• To control the size of predator populations

• To control the size of producer populations

• To control the size of prey populations

• To control the size of abiotic factors

It is the place in an ecosystem where an organism lives.

• Habitat

• Ecosystem

• Niche

• Environment

It is an organism that is introduced to a new ecosystem and causes harm.

(a)  

Invasive species can harm ................................

• environment

• economy

• human health

• All the options are correct

An invasive species is introduced to an environment.

• accidentally

• on purpose

• Both ways

Organisms that hunt for their food.

• Prey

• Predators

• Producers

• Consumers