strongylocentrotus franciscanus

Strongylocentrotus franciscanus, commonly known as red sea urchin, giant red urchin, giant red sea urchin, red urchin : globoid body with meriodional symmetry ie no arms, brachioles or appendages or no pinnate structure, exclusively marine, have radial symmetry, span full depth of ocean, echinodermata translates to spiny skin, larvae have bilateral symmetry but is lost during metamorphosis, multicellular organism, eukaryote (nucleus and organelles in membrane), body plan becomes fixed…

Comments are closed.