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What else can I help you with?
Is radial symmetry common in echinoderms?
Yes, all echinoderms have radial symmetry.
What kind of symmetry does mullusks display?
According to animal classification into bilateria and radiata (ACCORDING TO SYMMETRY)the echinoderms and molluscs are bilaterally symmertrical.
Do echinoderms have bilateral symmetry?
No, echinoderms do not have bilateral symmetry. They have radial symmetry, which means their body parts are arranged around a central axis.
What type of echinoderm has radial symmetry?
All echinoderms have radial symmetry
Is the symmetry of adult echinoderms radial symmetry based on two?
yeah yeah
Most adult echinoderms have symmetry?
No. Most have radial symmetry. No. Most have radial symmetry.
What phyla have a radial symmetry?
Sea StarsJellyfishSponges
Why are echinoderms thought to have evolved from bilaterally symmetrical ancestors?
Echinoderms are thought to have evolved from bilaterally symmetrical ancestors because their larval forms exhibit bilateral symmetry. Over time, echinoderms undergo a process called pentaradial symmetry, where they develop a five-point radial symmetry characteristic of adult echinoderms. This suggests a modification from bilateral to radial symmetry during evolution.
Why do zoologist think that pentaradial symmetry was not present in the ancestor of echinoderms?
Zoologists believe that pentaradial symmetry was not present in the ancestor of echinoderms because this symmetry is a derived characteristic that evolved later in their evolutionary history. The ancestral echinoderms likely exhibited bilateral symmetry, similar to their closest relatives, such as chordates and other deuterostomes. Fossil evidence and comparative studies of living echinoderms suggest that the transition to pentaradial symmetry occurred after the divergence from their bilateral ancestors, as a response to their marine environments and ecological adaptations.
Echinoderms body description?
Echinoderms are a phylum with usually 5 fold symmetry, spines and calcium carbonate plates.
What are the parts of echinoderms?
tube feet and
What type os symmetry do Echinoderms have as adults?
Radial! :D
