Could somebody with the question in the picture above, !

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.

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms