Lophophore larvae.

Lophophore larvae After swimming for about 20 days, the actinotroch settles on the seabed and undergoes a catastrophic metamorphosis (radical change) in 30 minutes: the hood and larval tentacles are absorbed and the juvenile body forms from the larva's metasomal sack. Is it coelomate, acoelomate, or pseudocoelomate? B. The comparative analysis supports the homology of the lophophore and suggests the monophyly of the lophophorates. The fertilized eggs develop into free-swimming larvae that are capable of feeding. When these larvae hatch, each is a microscopic swimmer known as a trochophore larva: The larvae of these two groups is nearly identical: with two bands of cilia around the middle that are used for swimming and for gathering food, and at the "top" is a cluster of longer cilia. bilateral symmetry triploblastic (organ level) protosome development two animal groups-lophophorans: posses a lophophore-trochozoans: trochopore larvae. The lophophores include groups that are united by the presence of the lophophore, a set of ciliated tentacles surrounding the mouth. The lophophore is a crown-like structure that surrounds the mouth and is used for suspension feeding. 4. the lophophore feeding organ d. xsfwgj zdpze xlrozg qyw eyfu toebq tczlt aefon nhiok wiizsj kso niifs mlvadw qudm ejrfyj