Rig
A vertebrate has a spinal cord/bones, an invertebrate has a gelatinous body, a shell, a shell like body, or protective muscles. the quick answer is a vertebrate has a backbone and a invertebrate has no backbone. the hardest part about remembering is tha vertebrate and invertebrate sound so similar. :)
Squid are phylum mollusca. They are marine cephalopods and are part of the invertebrate family. Ocean dwelling mollusks move or swim by jet propulsion. They propel themselves by ejecting water from their body. The squid ejects water from a cavity within its body.
All invertebrate animals have a body without a backbone.
invertebrate
An invertebrate that has a soft body and a shell is called exosceloton.
A worm.
Bones
A crawfish is an invertebrate. It has an exoskeleton (outside of the body).
it is the cornea
any invertebrate animal with a three-layered body and a pseudocoel
any invertebrate animal with a three-layered body and a pseudocoel
The body plan of an invertebrate Chordate is quite unique as it does not entail a backbone. It has a hollow dorsal nerve cord and post-anal tail among other crucial features.