turantula
marine invertebrates
The arthropod group
The simplest kind of invertebrates are typically single-celled organisms like amoebas or multicellular organisms like sponges, which have very basic body structures and lack complex organ systems. These invertebrates often have limited mobility and basic feeding strategies.
They live in the savannah.
none at all
In most cases invertebrates do not have any circulatory system. However, the few that have one have the closed circulatory system.
I think the word you're after is just invertebrates. Vertebrates and those animals with a notachord are known as the Chordata - but those with neither spinal chord nor notachord are simply invertebrates.
Vultures are everywhere! Keep moving...!
some birds that live in the savannah are ostrich, savannah sparrow, emu, that's all that I know
A dragonfly is not a vertebrate at all. Dragonflies are insects which are classified as invertebrates.
sponges are one invertebrate group which has no mouth, stomachs or other organs