Grade 8 Ecosystem

What is an ecosystem?

• A community of non-interacting organisms and their physical environment.

• A biological community of interacting organisms and their chemical environment.

• A biological community of interacting organisms and their physical environment.

• A community of non-interacting organisms and their chemical environment.

What is a biotic factor?

• Any non-living component that affects the population of another organism, or the environment.

• Any living component that has a population.

• Any living component that affects the population of another country.

• Any living component that affects the population of another organism, or the environment.

What is a food web?

• A system of intraconnecting chains linked together to show the feeding relationships of organisms in an ecosystem.

• A system of interconnecting chains linked together to show the feeding relationships of organisms in an ecosystem.

• A system of interlocking chains that show a relationship between non-living things.

• A system on intralocking chains that show a relationship between non-living things.

What is an abiotic factor?

• A living condition or thing, that influences or affects an ecosystem and the organisms in it.

• A non-living condition or thing, that does not affect an ecosystem and the organisms in it.

• A non-living condition or thing, that influences or affects an ecosystem and the organisms in it.

• A living condition or thing, that does not affect an ecosystem and the organisms in it.

What type of organism always starts the food chain?

• Producer (Plants)
• Consumers (Organisms)
• Predators (Organisms)
• Decomposers 

What type of organism always ends the food chain?

• Producer (Plants)
• Consumers (Organisms)
• Predators (Organisms)
• Decomposers 

What is a carnivore?

• An organism that only eats plants
• An organism that only eats other animals
• An organism that eats plants and animals

What is a omnivore?

• An organism that only eats plants
• An organism that only eats other animals
• An organism that eats plants and animals

An animal that hunts and eats other animals for energy.

• prey

• predator

• decomposer

• consumer

Choose the producer.

• rock

• tree

• cow

• bird