1) compare and contrast the taiga and desert biomes
2) compare and contrast the tundra and grasslands biomes

Ok so the taiga and desert biomes are similar  because both of them have very little transportation , climate zones and climate zones depending on the latitudes and both biomes have little water available for plants and animals. Taiga biomes have little due to freezing and deserts  due to little rain. A difference  is that more plants can survive in the taiga than in the deserts, which in turn supports more animals. Deserts have different types of deserts that are characterized  in temperature and rainfall.Deserts are the driest biome while taigas are one of the most coldest.   A similarity between the Tundra and Grasslands biomes is that the tundra is cold and dry and little to no rainfall every year while, the grassland has warm temperatures with light winds. A similarity between them is that both biomes have a good amount of herbivores and carnivores and animals and plants have adapted to their surroundings 

Plants, sunlight, growth and artificial sunlight