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Invertebrate (in CC amphib glossary)

This is a discussion on Invertebrate (in CC amphib glossary) within the Glossary - Completed Words forums, part of the Glossary Project category; Invertebrate: An animal which lacks a backbone (such as insects, spiders, worms, etc.). For amphibians, these are a naturally occurring ...

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Old 6th January 2010   #1 (permalink)
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Default Invertebrate (in CC amphib glossary)

Invertebrate: An animal which lacks a backbone (such as insects, spiders, worms, etc.). For amphibians, these are a naturally occurring food source.



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Old 18th January 2010   #2 (permalink)
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Default re: Invertebrate (in CC amphib glossary)

For the shake of exactitude, wouldnīt it be better perhaps to say "Any animal that lacks an squeletal structure or a notochord in all stages of itīs life. This includes all animals outside the phylum Chordata (such as insects, worms, arachnids, crustaceans...)"
Maybe a bit technical but definitely more exact, right?



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Old 18th January 2010   #3 (permalink)
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Default re: Invertebrate (in CC amphib glossary)

Quote:
Originally Posted by Azhael View Post
For the shake of exactitude, wouldnīt it be better perhaps to say "Any animal that lacks an squeletal structure or a notochord in all stages of itīs life. This includes all animals outside the phylum Chordata (such as insects, worms, arachnids, crustaceans...)"
Maybe a bit technical but definitely more exact, right?
Ugggh...but there are invertebrate chordates.
I would be more inclined to perhaps change the definition to:

Invertebrate: An animal which lacks an internal skeleton. Invertebrates either have an exoskeleton (e.g., insects and spiders) or no skeleton (e.g., worms). For amphibians, invertebrates are a naturally occurring food source and comprise much of their diet.

What do you think?



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Old 18th January 2010   #4 (permalink)
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Default re: Invertebrate (in CC amphib glossary)

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Originally Posted by Jan View Post
Ugggh...but there are invertebrate chordates.
Yes, there are, but they are not considered invertebrates, at least not from a taxonomic point of view.
I was aiming for a scientifically accurate version, more than an easy explanation for the general public, but perhaps thatīs a mistake.



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