Ecosystems - 5th Grade

What is the green substance in plants that helps them to manufacture food from carbon dioxide and water?

• phloem

• chlorophyll

• xylem

• chloroplasts

• stoma

This structure helps plant cells to move food from the leaves to the rest of the plant.

• vein

• xylem

• chloroplasts

• phloem

• stoma

This is the stiff narrow tubes in a plants that forms the framework of a leaf.

• vein

• xylem

• chloroplasts

• phloem

• stoma

An animal that eats plants is a(n)

• herbivore.

• carnivore.

• vegetarian.

• omnivore.

An animal that eats only meat is a(n)

• herbivore.

• carnivore.

• vegetarian.

• omnivore.

An animal that eats both meat and plants is a(n)

• herbivore.

• carnivore.

• vegetarian.

• omnivore.

A type of plant or animal that has died out completely

• extinct species

• carnivore

• limiting factor

• decomposer

A complex network of food chains within an ecosystem

• food web

• food chain

• limiting factor

• trophic level

A factor that controls populations in its environment

• food web

• food chain

• limiting factor

• trophic level

An ordered arrangement of plants and animals in which each feed on the one below it

• food web

• food chain

• limiting factor

• trophic level