Understanding Organisms and Ecosystems

What is an organism?

• A non-living thing

• A living thing

• A type of plant

• A type of environment

What characteristic defines a species?

• They can live in the same habitat

• They are similar organisms that can reproduce together

• They are animals that eat plants

• They must live in different environments

What is a habitat?

• A large tree

• A place where an organism lives

• A population of animals

• A type of food chain

Which of the following is NOT true about a habitat?

• It provides food and shelter

• It must be large, like an ocean

• It can be small, like a drop of water

• It is an environment where organisms live

What is a population?

• All the organisms in one ecosystem

• All members of one species in the same area

• All the habitats in one area

• A community of non-living things

A community is:

• A group of animals that live underground

• All the non-living parts of an ecosystem

• All the populations that live together in one place

• All the plants in a forest

What makes up an ecosystem?

• Only living organisms

• Only non-living organisms

• Living and non-living things

• Only plants and animals

Which of the following is a producer?

• Deer

• Lion

• Plant

• Crow

What do decomposers do?

• Eat plants and animals

• Break down dead plants and animals

• Produce their own food

• Consume sunlight

Which of the following is an example of a herbivore?

• Snake

• Spider

• Deer

• Vulture