Short chains of carbohydrate (glycocalyx -fingerprint) attached to proteins or phospholipids in the cell membrane make up the:

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.

What field of science did harry hess study?

Rotenone is an insecticide that is toxic