SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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invertebrate chordates
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chordates
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vertebrates
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None of the above
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Detailed explanation-1: -Tunicates (Urochordata). Tunicates are one of two subphyla of invertebrate chordates. Adult tunicates are barrel-shaped. They have two openings that siphon wate r into and out of the body.
Detailed explanation-2: -Tunicates (subphylum Urochordata) and lancelets (subphylum Cephalochordata) are the only invertebrate groups within the phylum Chordata.
Detailed explanation-3: -Although tunicates are invertebrates (animals without backbones) found in the subphylum Tunicata (sometimes called Urochordata), they are part of the Phylum Chordata, which also includes animals with backbones, like us.
Detailed explanation-4: -Key Points. Urochordata (tunicates) and Cephalochordata (lancelets) are invertebrates because they lack a backone. Larval tunicates (Urochordata) posses all four structures that classify chordates, but adult tunicates retain only pharyngeal slits.
Detailed explanation-5: -Statement 1: Urochordates and cephalochordates are often called invertebrate chordates.