The first Phylum to evolve and endoskeleton is the Echinoderms.
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Cnidarians digest their food extracellularly.
Cnidarians digest their food extracellularly.
The Cenozoic Era was dominated by dinosaurs.
The Cenozoic Era was dominated by dinosaurs.
How do flatworms respire?
How do flatworms respire?
Muscles and bones are derived from which of the following ge…
Muscles and bones are derived from which of the following germ layers:
Match the description with the appropriate Phylum.
Match the description with the appropriate Phylum.
Almost 2/3 of all named species on Earth belong to the Phylu…
Almost 2/3 of all named species on Earth belong to the Phylum ________________
Animals in which the mouth develops from or near the blastop…
Animals in which the mouth develops from or near the blastopore are called _________________
Two example of parasitic flatworms include flukes and tapewo…
Two example of parasitic flatworms include flukes and tapeworms.
Almost 2/3 of all named species on Earth belong to the Phylu…
Almost 2/3 of all named species on Earth belong to the Phylum ________________