the process in which plants use sunlight to make their own food

an organism that can make its own food

natural home or environment of an organism

an organism that breaks down dead organisms into nutrients

an organism that has to eat other organisms for energy

water-based ecosystem

land-based ecosystem

The sun plays an important role in the process of _________________.

A squirrel's natural ______________ is the forest.

__________________ use the process of photosynthesis to make their own food.

The rainforest, desert, and forest are all __________________ ecosystems.

Oceans, wetlands, and estuaries are all ________________ ecosystems.

__________________ eat plants and/or animals to obtain nutrients.

When a bird dies in a forest, earthworms act as a ________________ to break down the bird into nutrients.

Trees are a beneficial ___________ factor to most ecosystems.