Invertebrates do not have a vertebral column (spine), they do not have internal skeletons, they are missing central nervous systems with brains, and most of them don't have a distinguishable head with sensory organs at the front of their bodies. For more information see the related links.
An invertebrate is missing a spinal cord!
a backbone
Vertebrates (like humans) have a backbone. Invertebrates (like worms) lack a backbone.
Yes , because is lack backbone .
spine
Since giant stick insects are insects, and all insects lack a backbone, they are invertebrates. Vertebrate = has a backbone, invertebrate = has no backbone
I assume you mean sponges, and they are obviously invertabrates (they lack a back bone).
Yes, all insects lack an internal skeleton and backbone so they are by definition invertebrates.
Yes. Flatworms lack a skeletal structure, and any creature without a skeletal structure is classified as an invertebrate.
invertebrate - has exoskeleton
One example of an invertebrate chordate is the lancelet (Branchiostoma). Lancelets are small, fish-like marine organisms that possess a notochord, a dorsal nerve cord, and pharyngeal slits. They lack a true vertebral column but exhibit key characteristics of chordates.
An invertebrate.
No, the phylum Chordata includes both vertebrate and invertebrate animals. Vertebrates are a subphylum within Chordata and have a backbone or spinal column, whereas invertebrate chordates, like tunicates and lancelets, lack a backbone.