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

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

An animal that eats plants is a(n)

An animal that eats only meat is a(n)

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

A type of plant or animal that has died out completely

A complex network of food chains within an ecosystem

A factor that controls populations in its environment

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

A category of organisms classified by what they eat

A system for transporting materials in a plant or an animal

A chemical process where green plants use energy from the sun to water and carbon dioxide into food

The most abundant life form on Earth; a source of almost 50% of Earth's oxygen, and present in both freshwater and marine ecosystems

Living factors that help an ecosystem thrive, such as plants, animals, and bacteria.

Non-living factors that help an ecosystem thrive, such as rain, minerals in the soil, temperature, and the sun

This group includes plants that produce food and oxygen

This group includes bacteria and fungi that break down dead plants and animals to produce minerals.

This group includes animals that eat plants and other animals and give off carbon dioxide necessary for plants.

These are the plant cells that move water and nutrients from the roots to the leaves of plants.

These are the tiny pores in the bottom of leaves that allow for the exchange of gases.

What are the special structures inside a plant that contain chlorophyll?

This is the place or natural conditions in which a plant or animal lives.

This is an area where a freshwater river or stream merges with the ocean.

The animals of a particular region or habitat are called the

The plants of a particular region or habitat are called the

The part of the water cycle where water falls in the form of rain, snow, sleet, or hail.

The process of snow or ice changing into water vapor without melting.

The part of the water cycle where plants give off moisture into the atmosphere.

The part of the water cycle where liquid changes into a vapor or gas.

The part of the water cycle where gas turns back into a liquid.

A gas that is formed from something that is usually a solid or a liquid at normal temperatures.

A gas that is taken into the stomata of plants during photosynthesis.

The process where rain water soaks into the ground.

A group of living organisms consisting of similar individuals capable of producing offspring.

A group of living organisms that do not have a backbone

A group of one of more species living in a habitat

A group of living things that interact in an ecosystem

The process where precipitation runs off the surface of the land and flows into streams, rivers, ponds, lakes, and eventually into the ocean.

A community of plants and animals that interact with their environment

A large community of plants and animals that occupies a distinct region.

The area around the planet Earth where life exists