Question

Desert, tundra, grassland, and chaparral are examples of __________ found in North America.

Answer 1

Desert, tundra, grassland, and chaparral are examples of ECOSYSTEMS found in North America.
Ecosystems is your answer because an ecosystem is a community of physical interactions (animals, humans, etc). All of these places have either of these which makes the answer Ecosystem. 

Answer:- Ecosystem.

Hope I helped ya!! xD 

Answer 2

trundra grassland and chaperailare biomes