An organism that can make its own food is called a

In which process do producers use carbon from carbon dioxide to produce other carbon-containing molecules?

If you were to make a physical model of the carbon cycle, what shape would the model take on?

A group of land ecosystems with similar climates and organisms is called a(n)

Ponds and rivers are two types of

Dandelions, horses, and other organisms that were brought by humans from one part of the world to another are examples of

The many overlapping food chains in an ecosystem make up a(n)

Which biome is extremely cold and dry?

Bacteria and fungi are known as ____________________ because they break down the remains of organisms.

The soil that is frozen all year in the tundra is called ____________________.

Water vapor turns into droplets of liquid water in the process of ____________________.

Small, light organisms such as baby spiders can be dispersed by ____________________.

Certain bacteria change nitrogen gas into a usable form in a process called _________________________.

Which biome is typically populated by many grasses, along with a few shrubs and trees?

What do we call the organisms that capture the energy of sunlight to make food

Second-level consumers may be either

Which gas do producers release during photsynthesis?

Oak, maple, and beech trees, which lose their leaves each year, are typically found in a ________ biome.

Which number represents a group of organisms that break down the wastes and remains of other organisms?

What are the steps of the water cycle?

Which organisms shown are producers?

Use the organisms listed from this ecosystem to construct a food chain. Begin your food chain with the producer.