DNA is very small, one complete turn of a DNA helix is about .

One of the largest seafood exporters to the united states is a. china b. brazil c. mexico d. saudi arabia

Describe two recent or ongoing space missions.

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."