In your own words, write the definition for Nuclear envelope.

The nuclear envelope surrounds the nucleus of a cell, which houses the genetic material in eukaryotes. It is made up of two lipid bilayer membranes: an inner nuclear membrane and an outer nuclear membrane. Essentially, it is the double membrane layer that seperates the contents of the nucleus from the rest of the cell.

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.