4. Describe a fly’s mouth.
5. Does a fly chew or suck its food?
6. What care does the mother-fly take of her eggs or her young?
7. Do flies have queens or live in swarms, as bees do?
8. Where do flies place their eggs?
9. What can you tell me of the changes from the egg to the full-grown fly?
10. How does the fly come from the pupa-case?
11. What things do flies eat?
12. How is it that a fly can run up a pane of glass?
13. How can a fly walk on a ceiling?