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Invertebrates:
animals with no vertebral column.

There are about 10 invertabrate phyla containing more than 95% of all animal species. 

Invertebrates have a wide range of characteristics, the lack of a backbone being the major common trait.

Scorpion

Some invertabrate phyla:

    Poriferalink to an Internet Website Cnidarialink to an Internet Websitelink to a local webpage Nematodalink to an Internet Websitelink to a local webpage Molluscalink to an Internet Websitelink to a local webpage Annelidalink to an Internet Websitelink to a local webpage Arthropodalink to an Internet Websitelink to a local webpage Echinodermatalink to an Internet Website

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Animals with a hard exoskeleton must shed the exoskeleton through a process of "molting" before they can grow in size.
 
 
 
 
 
 
 
 
 
 
 
 
 
 


 
 

While there may be more than one way to describe animal success, insects are the most numerous and diverse animals on earth today.