You purified fragments of the nuclear envelope from human fibroblasts by biochemical fractionation. You first decide to use electron microscopy to test for the presence of the nuclear lamina on these envelope fragments.
Which of the following structures would suggest the presence of the nuclear lamina?

A. "little bumps", presumably membrane proteins, at the surface of the inner membrane
B. two phospholipids bilayers ~300 and ~700 nm fibers an organized meshwork of ~ 10 nm fibers
C. large pores that span through both nuclear membranes

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport