... have made it illegal to kill endangered species (poaching)
<span>Taxol block the depolymerization of the microtubule that occurs during the anaphase of M phase in which the chromosomes are pulled towards opposite pole. Due to lack of pulling, separation of the chromosomes is not possible. Hence the cells will be arrested at M phase checkpoint</span>
Many scientists never wear a lab coat at all. Some work in fields that don't require lab work and do their work behind a computer. Some use their science degrees to teach or write about science. Some work as consultants for companies, or as editors for scientific journals.
Active faults are structure along which we expect displacement to occur. By definition, since a shallow earthquake is a process that produces displacement across a fault, all shallow earthquakes occur on active faults. Inactive faults are structures that we can identify, but which do no have earthquakes.
Environment. None of the others make any sense. :)