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Ocean crabs are not amphibians, they are crustaceans. Body crabs (crab lice) are also not amphibians, they are arachnids.
Yes, all mammals, reptiles, avians, amphibians, insects, arachnids, crustaceans, piscines, gastropods, cephalopods, annelids, etc. are all animals.
Arachnids and crustaceans are both arthropods and both have exoskeletons.
* birds * reptiles * fish * amphibians * invertebrates, including crustaceans, molluscs, insects, arachnids, etc
No. They are arachnids.
Vertebrates have spines and invertebrates don't. The groups of vertebrates are mammals, birds and fish, reptiles and amphibians. Invertebrates are insects, arachnids, molluscs, crustaceans etc.
arachnids, insects, crustaceans, etc.
No, frogs are amphibians.
Arthropods (insects, arachnids, crustaceans, and the 'pedes), mammals, birds, reptiles, fish, amphibians, and soft invertebrates. I can't remember the eighth one, though...
No they are from the family arachnids.
Yes, crustaceans do have an exoskeleton, as do all arthropods, including arachnids, insects, and crustaceansm
Vertebrates: # Fish # Amphibians # Reptiles # Birds # Mammals Invertebrates: # Sponges # Cnidarians (formerly called Coelenterates) # Worms # Mollusks # Arthropods (Arachnids, Crustaceans, Millipedes and Centipedes, Insects)