To get the rectangle to hide some of the text, make its z-order higher.

Oft Synchoresis will a point concede, That other points with greater weight may plead.]

I believe that Stephen Gould and Elizabeth Vrba were correct in proposing exaptation as a missing term in evolutionary biology. I want to make a distinction between adaptation and exaptation here. Again it is about mechanistic differences. An exaptation can be viewed as the acquisition of a new and useful function once the novelty has spread and once the environment has changed.

The ligninification ends in a mass destruction of cytoplasm which caused hollow, rigid tubes that are much more resistant tissue furthering the strength of the plant to grow in height and protect itself.