One of the characteristics of many invertebrate groups is that there bodies are made of very many segments. Examples include the worms, spider, starfish and insects.
3 of the water invertebrate groups are the annelids, arthropods and crustacean.
There is no proof that aliens exist. If they do, it is possible that alien races could have hard and soft invertebrate characteristics.
invertebrates are animals without backbones
Invertebrate 1: Thomas Hinkle Invertebrate 2: You
Krill is a shrimp-like marine invertebrate animal
Well its sort of confusing, see since the invertebrate group has more groups than the vertebrate than that means invertebrate would have more organisms.
None, all are in different groups
The eight groups are:* Mollusks * Echinoderms * Arthropods * Annelids * Nematodes * Porifera* Platyhelminthes * Coelenterates Or go to:What_are_the_8_groups_of_invertebrates
Invertebrates do not have spines (backbones). See related questions and links for more information.
They don't have a backbone and have all the characteristics of a chordate.
The sudden increase in invertebrate fossil diversity
list of the characteristic of effective groups