The plates will move and the underwater island will start to move and shift. It's possible it will also weather
Primary eats grass and plants and the secondary eats the primary to get the energy it needs to live
Yes, it's A. Spinach and cabbage are (A) the leaves of plants. Spinach do have flowers but they are not the flowers itself while cabbages don't have flowers. Cabbages and Spinach don't have fruits either.
Muscles and tissue will not be able to grow properly.