Why is it important for a single gene to be able to produce hundreds or thousands of rna molecules?

Creating new things to solve problems and improve life depends on the close interaction of which two fields?

Homo heidelbergensis was a tall, muscular hunter, who used both tools and weapons. because h. heidelbergensis was not a gatherer/forager, but ate a varied diet including meat and fish, we would expect to see what anatomical changes?

Climate like that in the sahara desert have the fastest rates of weathering