Biology question?

Question

One of the distinguishing features of animals is that their cells do not have the thick outer lining known as a cell wall. plant cells have a cell wall, as do fungi cells. Why would such a feature be advantageous for plants, but disadvantageous for animals?

Answer 1

Plants can't move and are subject to harsh environmental conditions such as high winds or heavy rains. Their ability to withstand those is partly due to the strong cellulose in their cell walls.

Answer 2

Without plagerizing, check this link:
http://en.wikipedia.org/wiki/Cell_wall