They developed to be protected by the hard shell from parasites and ther predators.
Vegetative reproduction, also known as vegetative propagation, is the process in which a single parent plant has an offspring that is identical to the parent, genetically. The offspring grows from parts of the parent plant. So, the answer to this questions is a.
I believe it would be the leaves because that helps collect water! :)
Well, if you look at the scientific process, the first step is to have a question to base it on.
Answer:
the the climax of the night
