Anyone got any ideas on what type of galaxy this is?

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.

How can you tell the difference between rough er from smooth er?

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false