Under a microscope Paheli observes a cell that has a cell wall but no distinct nucleus. The cell that she observes is
(a) a plant cell
(b) a nerve cell
(c) an animal cell
(d) a bacterial cell
(d) The cell observed by Paheli is a bacterial cell. It is a prokaryotic cell that has a cell wall (like plants) but no distinct nucleus.
A plant cell has a cell wall and a well defined nucleus, whereas in an animal cell, the former is not present.
A nerve cell is an animal cell that is long and branched to function as transmitter between brain and other parts.