Explain the carbon cycle and explain why burning fossil fuels is an issue.

Why aren't the stains like crystal violet and safranin washed away with water during simple staining?

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

Which class of organic compounds makes up the channels and pumps that move materials from one side of the cell membrane to the other? a.) carbohydrates b.) lipids c.) proteins d.) nucleic acids