Compare two forms of X-ray imaging.
real-time monitoring
used for mammography
a single image
live imaging
projectional
uses a contrast agent or dye

Ectocarpene is a volatile, sperm cell-attracting material released by the eggs of the seaweed ectocarpus siliculosus. its constitution is all the double bonds are cis, and the absolute configuration of the chirality center is s. draw a stereochemically accurate representation of ectocarpene.

The instructions for making proteins come originally from

What processes would you expect to be key in the production of yogurt ?