An organism that can make its own food is called a

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.

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 gas do producers release during photsynthesis?

Which organisms shown are producers?

What are the steps of the water cycle?

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

Which biome is very dry, receives very little rainfall, hot during the day, and cold at night?

The most energy is available at the ___________________ level of the energy pyramid.

What type of consumer eats both plants and animals?