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Hemichordata was carlier considered as a...

Hemichordata was carlier considered as a subphylum under phylum-Chordata. But now, it is placed as a separte phylum under

A

Urochordata

B

Cephalochordata

C

Protochordata

D

Non-chordata

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The correct Answer is:
D
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Assertion: Hemichordata was earlier considered as subphylum under phylum chordata. But now it is placed as a separate phylum under non-chordata. Reason: Hemichordates have open type of circulatory system and indirect development.

The phylum which was earlier considered as a subphylum under chordata but now placed as a separate phylum, in non-chordates is

List 3 subphyla of the phylum Chordata.

Who raised the status of hemichordates from subphylum to phylum

Phylum chordata is divided into how many subphyla?

Give one example of phylum Hemichordata.

Phylum chordata || Sub-Phylum Urochordata || Sub-Phylum Cephalochordata

ARIHANT NEET-ANIMALIA-III (CHORDATES)-CHAPTER EXERCISES (TAKING IT TOGETHER) (ASSORTED QUESTIONS OF THE CHAPTER FOR ADVANCED LEVEL PRACTICE)
  1. Which of the following is a characteristic of chordates?

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  2. Notochord-like structure is present in hemichordates in the region

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  3. Hemichordata was carlier considered as a subphylum under phylum-Chorda...

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  4. In Cephalochordates, the coelom is

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  5. Scales and paired fins are absent in

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  6. Suctortial mouth and a rasping tongue with denticles is present in

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  7. The marine animals with streamlined body having cartilaginous endoskel...

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  8. In class-Chondrichthyes, the mouth is located ventrally and the teeth ...

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  9. Internal nares are absent in

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  10. Which of the following types of fishes habe heterocercal tail?

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  11. The members of Chondrichthyes have to swim constantly to avoid sinking...

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  12. Operclum with spiracle is absent in

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  13. In Torpedo or electric ray, the electric organs are modified from of

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  14. Pregnant male is the term used for

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  15. The character common to both cartilaginous and bony fishes, is the pre...

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  16. As compared to cartilaginous fishes, bony fishes have dorsal fin

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  17. Class-Osteichthyes includes both marine and freshwater fishes with

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  18. Which of the following is not an oviparous fish?

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  19. The fish famous for parental care is

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  20. Lung fishes are

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