The membrane bound organelle you refer to is the Lysosome. The lysosome fuses with a vacuole where it digest the contents.
Answer:
I don't speak English, I only translate, I'm sorry, but you like Kunno, I know, hush, I said hush, I don't talk to Kunno fans
Hey there!
Number 3, "has more people than ever before" is correct. As there are more people, there is a greater need more resources.
Hope this helped, have a good night!