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10 Cards in this Set
- Front
- Back
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Based on molecular phylogeny which animal taxon has members with radial symmetry |
Radiata |
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Which phylum has members that exhibit radial symmetry with their body parts arranged regularly around a central axis |
Cnidaria |
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What describe the post embryonic development called complete metamorphosis and members of the order diptera (flies) |
Several instars of Austin worm-like larvae followed by a stage where they are a sessile pupa and then ending in a adult stage that is very different from the larval instars |
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Which members of a lophotrochozoan phylum are acoelomate and dorsoventrally flattened and lack circulatory or respiratory systems |
Platyhelminthes |
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Which phylum includes members that have a body divided into three regions called the visceral mass, head-foot, and mantle |
Mollusca |
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For most metazoans what is the name of the outermost tissue layer during development |
Ectoderm |
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Fore most protostomes what is the developmental origin of the body cavity between the gut and muscles of the body wall |
Blastopore |
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The burgess shale formation in Eastern British Columbia includes a wide variety of animal fossils such as hallucigenia and opabinia when was the Burgess Shale formed |
About 505 million years ago |
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What is the name of the paired excretory organs found in most body segments of segmented worms |
Metanephridia |
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Which term refers to animals that do not have a body cavity that separates they got from the muscles of the body wall |
Acoelomate |
