Deserts

Yes. Red kangaroos can be found in parts of the Simpson desert, but they are not found among the sandy dunes. They are only found in the semi-arid regions where there is plenty of vegetation, as well as permanent waterholes.

The area is known for its volcanoes and extreme heat, with daytime temperatures surpassing 50 °C (122 °F).

The Lut Desert is in Iran on the Asian continent.

well humans have changed the desert from the housing to tourist places like in the midle of Australia uluru - las vagas was actually a desert and humans have significantly changed deserts because 65% of the worlds oil is found beneath the desert so most deserts are formed into mines. this is bad because rare animals and plants

sure to product your head from the sun hahaha

With sufficient water, yes, corn will survive in the desert.

A desert must receive less than 10 inches (250 mm) of precipitation per year on average.

The Harmattan is a hot, dry and dusty wind (continental trade wind) blowing over West Africa. I know not why it might be delayed.

if there are lots of animals those animals need food and water which are both scarce so if there are lots of animals then thers less for everyone else sometomes none so the animal dies X_X

755 million

The Kyzyl Kum Desert is located in the countries of Kazakhstan, Turkmenistan and Uzbekistan.

Veins can collapse, serving as the blood vessel with the greatest resistance to blood flow in the circulatory system

Through the use of dams and canals.

There are mammals that are truly ectothermic. However the naked mole-rat does not regulate its body temperature in typical mammalian fashion and unlike other mammals its body temperature tracks ambient temperatures.

The Arabian Desert

About one-third of the earth's land surface is desert.

Gobi desert

A camel

We may might not be on the same page, but I believe it is El Chupacabra

Trees usually cannot survive in the cold tundra as the ground is frozen solid a few inches below the surface and stays frozen even in summer. Roots cannot penetrate this frozen soil. In the desert, however, trees do not have that problem and area able to send their roots deep into the soil to find water.

Temperature does affect rainfall in the Chihuahuan Desert. During the monsoon much of the rainfall comes from typical air mass thunderstorms. These storms form when there is high moisture content in the atmosphere and daytime heating causes convection that builds these storms. If the day happens to be cool, convection will be limited and these storms usually do not form.
High surface humidity will frequently lower the temperature as it takes more solar energy to heat moist air than dry air.
So the answer to your question is 'both.' Temperature can affect rainfall and rainfall can affect temperature.
It is not unusual to have heavy thunderstorms on one day and, even if the atmosphere is heavy with moisture, the following day there is little or no activity because the higher humidity is limiting convective activity.

Sahara desert, and Antarctica (yes it's a desert because it receives little rainfall)

type in Iraq on the computer and click images that will show you

Clouds and moisture act as a blanket holding in the heat of the day. These are lacking in a desert. Once the sun goes down in the desert, the heat begins to radiate back into space and the temperature can drop quite drastically.

an area with less than 10 inches off rain annually