How Does the Hollow Scape of a Dandelion Function?

[h256]

Hi,

Just wondering if someone could help me answer the following questions. Here is a photocopy of the questions (a to d) which I've found on the net. I have attempted the questiosn myself but am struggling.

Your help is sincerely appreciated.

 

[PhaseShifter]

You should show us your attempts before we help.

However, I will suggest that in addition to hypertonic and hypotonic solutions and their effects on cells, you should also think about the structure of the scape--by analogy, consider why a bimetallic strip responds to temperature changes the way it does.