Choose the answer that is not a possible consequence of a first-time drug use.
a. no notable sensation at all
b. relief from pain or discomfort
c. death from overdose
d. physical and psychological addiction

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

There are six elements that make up most of the human body. which of the following is not one of these six elements?

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.