The characteristics listed in i-iii below would likely apply to which stage of batch cell growth?i) decrease in cell size in this periodii) if a species were an endospore former, it would most likely be occurring here iii) susceptibility to penicillin would be very low during this time

Stationary phase

Explanation:

In the batch cell growth curve, cell initially begins to be active in activities. However, a point is reached where the growth within the cell become constant. This is the stationary phase. Here, the cell no longer undergo the biological metabolism, but only get more weakened, used up its own cellular energy and thus become broken and divided. There's increased competition for nutrients and other mineral elements at this phase. Individual cell that can not withstand such fierce competition begins to die off, and ultimately less metabolically active.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely