Besides antarctica which continent is made up almost entirely of desert

What is the 77 element on the periodtic table

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement