No, a sand dollar is a invertebrate belonging to the order Clypeasteroida.
No, the sand shark is a fish with gills.
Star fish
A sand dollars crawls but it is not a reptile. It is a Echoinoderm related to sea urchin and star fish.
Both the mouth and the anus are on the back side of the sand dollar. The hard outside is called the test. A sand dollar is related to sea urchins and star fish.
If other fishes are present in your tank, then it may not be a good idea for the skin of the sand dollar will begin to rot and spoil the tank. So first remove the sand dollar dry it in the sun and clean it with bleach. Then you can decorate your fish tank with the cleaned sand dollar.
a bass is to fish as horse is to mammal
A sand dollar was called a geopolitical dollar
No, a sand dollar is a marine animal that must remain in the water to survive. It is very similar to a sea urchin or even a star fish in this sense.
Mammal is to lungs as fish is to gills.
"Is a Sand Dollar a vertebrate?" No. A sand dollar is not a vertebrate because it does not have a backbone.
Its on the second page on that branch. The shadow of it is on the sand dollar, so you can follow it from there