Final answer:
The only continent without a desert biome is Antarctica, as deserts are present on all other continents, including Africa, Asia, the United States, and Australia.
Step-by-step explanation:
The desert biome, characterized by low precipitation and extremes in temperature, can be found across various continents. However, the correct answer to the question as to which continent does not have this biome is Antarctica. Deserts typically have scarce vegetation and can drastically vary, such as the Saguaro National Park in Arizona, which houses abundant plant life, versus the rocky desert of Boa Vista island in Cape Verde, Africa, which is largely devoid of plant life. Deserts are present on other continents such as Africa, known for the Sahara Desert, and in areas of the United States, Asia, and Australia, but the ice-covered continent of Antarctica is not home to the desert biome.