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Chordata Protochordata - Questions and Answers

Practice questions on Chordata Protochordata.

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1. Which one is absent in Branchiostoma
A. Head
B. Gill slits
C. Notochord
D. Dorsal hollow nerve cord
Explanation:
2. Branchiostoma is
A. Filter feeder
B. Carnivorous
C. Omnivorous
D. Herbivorous
Explanation:
3. Part of Herdmania embedded in sand is
A. Test
B. Foot
C. Tunic
D. Both A and C
Explanation:
4. In urochordates, the chordate characters are
A. Well developed
B. Present only in larva
C. Present in adult
D. Present both in adult and larva
Explanation:
5. Water current is maintained in Herdmania by
A. Rhythmic contractions of tunic
B. Opening and closing of atrial and branchial apertures
C. Contraction of incurrent siphon
D. Cilia bordering gill slits
Explanation:
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