Design and draw a tool to keep the scientist's laboratory at STP. and how it helps

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 following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

Study this image which statement best describes the rock shown check all that apply