An ecosystem is an area such as a desert, river, lake, mountain, rainforest or prairie. In an ecosystem, living organisms and nonliving are all part of the environment.
A desert is a region that receives less than 25 cm of moisture each year. They have many different landscapes and types of soil. Many kinds of plants and animals flourish in the desert.
West Texas desert Oasis in the desert
Sahara desert Arizona desert
Plants in the desert
Animals in the desert rattlesnakes roadrunners
Desert tortoise Red tailed hawk
A mountain is a large region of land that projects above its surrounding area. It is a major feature of the surrounding area. Because many mountains are so high in elevation, they provide several different levels, or zones for plant and animal life.
Mountain Plants Moss Mountain wildflowers
Fur tree Spruce tree
Mountain Animals Grizzly bear Big horn sheep
The prairie is flat or gently rolling land covered with grasses. The North American prairie extends from central Canada down through the central states to Texas. Weather can vary widely, it can be hot in the summer and cold in the winter .
Prairie Plants Butterfly weed Prairie grass with coneflower