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Sand dollars belong to the class Echinoidea within the phylum Echinodermata, which also includes starfish and sea urchins. Their evolutionary history traces back to about 100 million years ago, with ancestors resembling regular sea urchins. Over time, sand dollars adapted to a burrowing lifestyle in sandy or muddy substrates, leading to their flattened, disc-like shape. This adaptation reflects their niche as bottom-dwelling organisms, allowing them to efficiently feed on organic matter in sediment.
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What was a sand dollar called before it was named a sand dollar?
A sand dollar was called a geopolitical dollar
Is a sand-dollar a vertebrate?
"Is a Sand Dollar a vertebrate?" No. A sand dollar is not a vertebrate because it does not have a backbone.
What is the evolutionary history of an animal called?
the evolutionary history of an animal
Does a sand dollar have a backbone?
no. a sand dollar is flat.
Is a sand dollar a echinoderm?
Yes sand dollar is an echinoderm.
Does a sand dollar have eyes?
Click on the link for a picture on a different website.
Is the sand dollar an echinoderm?
Horizontial or vertical, depending on where you cut it.
Is sand dollar a flower?
Sand dollar is not a flower. Sand dollar is a flat living marine creature. They are closely related to star fishes.
What is the word for an organism's evolutionary history?
The word for an organism's evolutionary history is its phylogeny. Phylogeny represents the evolutionary relationships and history of a group of organisms.
Is a sand-dollar in the animalia kingdom?
yes the sand dollar kindom is animalia
Is the sand dollar plankton?
No. A sand dollar is another living thing that is not plankton.
Is sand dollar a mammal?
No, a sand dollar is a invertebrate belonging to the order Clypeasteroida.
