2 results found

Search Results for: choanocytes

A New Theory on the Origin of Animal Multicellularity

Multicellular life, purportedly, started around 600 million years ago. From single-celled, certain organisms eventually... Read More

Choanocytes

Collar cells on sponges-unique to the sponge-it lines the radial canal-has flagella that whip and move the water to the body... Read More