Invertebrates include arthropods, which covers insects, centipedes, millipedes, crustaceans and arachnids, just to name a few. They are, quite simply, any animal without a backbone. Some common invertebrates are:
Ant Butterfly
Tigers are not invertebrates
Invertebrates? Invertebrata?
invertebrates
invertebrates i think.
Jellyfish, octopus, sea urchin
oct
This is not the site to write the name of all invertebrates. It is too long and too invloved. I suggest you look in your science book.
"invertebrates"
They are insects, therefore they are invertebrates.
slug, snail, skark (they have tissue instead of bones),
I do not know if there is an exact percentage, but I do know that the of the known species, the most are invertebrates. This is because bugs are invertebrates. There are so many different species of bigs, just the insects alone, that we cannot find and name them all. Also you have many other groups of invertebrates.