Answer:
So the plant might grow a bit in the dark, without photosynthesis, from stored reserves, and might continue to survive for a couple weeks or more without growing, but in the long term the plant will not be able to grow or live without photosynthesis and would eventually die.
Explanation:
I believe it's "to emphasize the impressive amount of new
ideas that were generated in a short amount
of time".
Answer:
Because he is embarassed.