Identify the structures on the right. Label A Label B Label C Label D

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."

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?