What’s the difference between cocaine and crack cocaine

If vegetable oil is made out of veggies, then what is baby oil made out of?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

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."