If all life on Earth came from ancient common ancestors, what explains the enormous diversity of life?

The deserts of the sahara and australia are associated with

According to this food web which of the following would be considered primary consumers

Which is a genetic engineering advancement directly related to a career in biotechnology? 1) improving solar energy collection 2) transporting textiles at higher rates 3)creating crop foods that resist insect pests 4)repairing historical sites with quality materials