The lack of a rigid cell wall is an animal feature that allows them to be mobile in some way.
The cell wall is a cellular structure (organelle) that provides support to plant and fungi cells.
Animals are mobile because they do not have this rigid structure that otherwise will hamper their motion.
In conclusion, animals cells do not have cell walls which helps them to be mobile.
Learn more about the cell wall here:
https://brainly.com/question/2622341
#SPJ1