What would happen if the membrane of a nucleus became permeable to most substances?

Which of the following is an abiotic factor in an ecosystem? a. bacteriab. airc. niched. grass(abiotic=non-living) me !

Plz ! what does it mean for an allele to be dominant?

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.