mimic the brain's internal system for relaxation and well-being by producing endogenous opiates.

Are the layers of rock above and below the coal older or younger?

Which is an innovation of gymnosperms? gymnosperms are the first seed plants. gymnosperms are the first flowering plants. gymnosperms are the first vascular plants. gymnosperms are the first spore plants.

Your client has just been prescribed oral iron. why would you advise this client to avoid taking their medication with coffee, tea, eggs, or milk?