Answer:
All vascular plants have water-conducting tissue and are better adapted for life on land than the bryophytes; they are also characterized by a dominant sporophyte generation.
I only have one reason but hope it helps!
Because without those bases pairing there <span>would be no structure of a DNA.</span>
The most common pathogen then carry is protozoa , that causes malaria
An example of a parallel choice on a dichotomous key is happy or sad and old or young. Either one of those answers.