Since flies are insects, they do not have a backbone. They have an exoskeleton instead which is only on the outside.
Only animals with backbones are vertebrates. Insects do not have a backbone.
No. All flies are invertebrates, just as all arthropods are invertebrates. These creatures do not have backbones.
There are no houseflies in Alaska.
Houseflies are born from maggots.
The houseflies enemies, other than the human, are spiders.
The family that common houseflies come from are Muscidae.
Nowhere. There are plenty of houseflies still in Australia.
When houseflies rub their hind limbs together, they are cleaning themselves. Grooming is a primary activity among houseflies and may even be called 'hand' rubbing.
Because it is the most common of all domestic flies and lives in human habitations.
no
feces
Yes they are.