oasis
Plants produce food by photosynthesis.
The Bengal tiger's habitat is dry at times, but is not so dry as to be desert-like. Most Bengals live in the forested areas of Bangladesh, Nepal, India, and Bhutan, where there is enough rain to support trees and many other plants and animals.
Irrigation allows for farming in some desert areas.
No, plants are rare. In some areas none can be seen. There are areas that receive little rain but dense fog moves in from the Pacific Ocean and provides enough moisture for lichens and a few cacti to survive. There are rare oasis were a few more plants can survive but these are quite uncommon.
The kangaroo does not live in the desert. There is insufficient vegetation to support a kangaroo in the desert. They prefer other areas such as grassland.
Dry desert areas.
A small fertile area in a desert is called an oasis.An oasis.
In most areas of the Atacama there is not enough moisture in the soil to support any microbial life forms. When NASA was testing their Mars Rovers in the Atacama their instruments could not detect any life, bacteria or otherwise, in the soil of the desert.
Without water irrigation, the desert areas would be too arid, and food plants would be unable to grow as a farm crop.
western Australia
Some rattlesnakes live in deserts but a few species live in grasslands and forests.
Dunes would be more prevalent in desert areas with an abundance of fine sand, few plants and a persistent wind.