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• A biome, also known as a major life zone, is a geographical area containing communities of plants and animals that have evolved to live in the same environment.
• It is the region's largest biotic unit, encompassing a diverse range of communities named for the region's key features, such as grasslands, deserts, and woods.
• Temperature, soil, and water are all factors that help us determine the type of life that exists in a biome.

• The average annual rainfall in deserts is less than 30 cm. The temperature is above 30°C during the day and below 0°C at night. Because of the shortage of water, cactus plants and plants with shallow root systems, as well as snakes, lizards, and some insects, are common living forms.
• Rainfall in tropical rainforests is quite high, averaging more than 250 cm per year. Normally, the temperature is warm and consistent. Canopy trees and a wide range of concealed animals are common living types.
• Savannahs receive medium levels of rainfall, ranging from 25 to 75 cm per year. The temperature is pleasant, ranging between 20 and 30 degrees Celsius. Grass and animals such as horses and bison are common living types.

The Arctic Tundra biome receives relatively little rainfall, with yearly totals of less than 25 cm. Tundra is home to just lichens. The temperature is below 0 degrees Celsius.

Though grasslands and deserts share some of these features, the tundra is the only biome on the list that has a short growing season, harsh winters, no trees, and is dominated by migratory animals.

As a result, Option (c) is the proper response.