Yes, plants live in all but the most exteme of deserts such as the Antarctic where few plants live and are rare in the Atacama Desert.
By definition, in the desert
There is a surprisingly large number of plants that are able to survive in the desert and few of them are cacti. Trees, shrubs, grasses, perennials, annuals and even some ferns and mosses can live in the desert.
Then it wouldn't be a desert any more. Trees, plants and animals would move in and live there.
The most common would be the locusts and grasshoppers.
An ecosystem is a place where plants and animals ( maybe humans ) live and animals and plants live in the desert so … 
A person can live indefinitely in the desert as long as they have sufficient water and nutritious food and, depending upon the particular desert, shelter.
Some of the plants that live in the Simpson Desert: Canegrass Acacia Parrot Bush Spinifex Grass
Armadillo lizard, Desert tortoise, camel, desert rat are the only animals that live in the desert.cactus, Soaptree Yucca, Mojave Aster are the only plants to live in the desert
Xerophytic plants live in the desert scrub.
Aphids can be found in any warm or hot desert which has plants upon which they feed.
Some rattlesnakes live in deserts but a few species live in grasslands and forests.
Yes.