How would pepsin activity be affected if it were put in a neutral solution?

Which flexible structure that supports the nerve cord and led to the backbone

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 many major plates cover the earth