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.
A sand dollar was called a geopolitical dollar
the evolutionary history of an animal
"Is a Sand Dollar a vertebrate?" No. A sand dollar is not a vertebrate because it does not have a backbone.
no. a sand dollar is flat.
Yes sand dollar is an echinoderm.
Click on the link for a picture on a different website.
The word for an organism's evolutionary history is its phylogeny. Phylogeny represents the evolutionary relationships and history of a group of organisms.
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.
The evolutionary history of a species is often displayed in a phylogenetic tree. This will clearly show the history of the species, which is also known as phylogeny.
yes the sand dollar kindom is animalia
No. A sand dollar is another living thing that is not plankton.