Yes they are. They are flattened burrowing sea urchins.
Echinoderm
A sand dollar was called a geopolitical dollar
The sand dollar is a type of sea urchin classified as Clypeasteroida. They are usually very flat in appearance and burrow in the sand.
"Is a Sand Dollar a vertebrate?" No. A sand dollar is not a vertebrate because it does not have a backbone.
Yes, a sand dollar is considered a type of fossil because it is the skeletal remains of a marine animal that lived millions of years ago.
no. a sand dollar is flat.
Yes sand dollar is an echinoderm.
Click on the link for a picture on a different website.
Horizontial or vertical, depending on where you cut it.
Sand dollar is not a flower. Sand dollar is a flat living marine creature. They are closely related to star fishes.
yes the sand dollar kindom is animalia