Question

why do animal cell show variation in shape

Answer 1

hii friends ..
.
It depends upon the functions.
vacuole of plant cell is big . it exerts more pressure towards cell membrane. so it needs the help of cell wall .
as it exerts opposite force. in the abscence of this the cell will burst.

in amimals vacuole is small so it exerts less pressure . this is why animal cell donot contain cell wall

like this there are many variations

hope its helpfull

Answer 2

animal cells show variation in shape as first they don't have a rigid cell wall like plants do.
next they have a constantly moving cytoplasm. also they have no vacuoles which occupy a lot of space in plant cells.
hence they show variation in shape