Match the following correctly related to cartilaginous fishes ? Column I Column II (i) Sphyma (a) Sting ray (ii) Torpedo (b) Dog fish (iii) Trygon (c) Saw fish (iv) Pristis (d) Electric ray (v) Scoliodon (e) Hammer headed shark

( i - e ) , ( ii - d ) , ( iii - a ) , ( iv - c ) & ( v - b )

( i - e ) , ( ii - a ) , ( ii - d ) , ( iv - c ) & ( v - b )

( i - c ) , ( ii - d ) , ( iii - a ) , ( iv - e ) & ( v - b )

( i - c ) , ( i - a ) , ( ii - d ) , ( iv - e ) & ( v - b )

The nerve cord of chordates is:

Single, hollow, tubular and non-ganglionated

Single, solid, tubular and non-ganglionated

Double, hollow, tubular and non-ganglionated

Single, hollow, tubular and ganglionated

Match the following correctly related to cartilaginous fishes ? Column I Column II (i) Sphyma (a) Sting ray (ii) Torpedo (b) Dog fish (iii) Trygon (c) Saw fish (iv) Pristis (d) Electric ray (v) Scoliodon (e) Hammer headed shark

( i - e ) , ( ii - d ) , ( iii - a ) , ( iv - c ) & ( v - b )

( i - e ) , ( ii - a ) , ( ii - d ) , ( iv - c ) & ( v - b )

( i - c ) , ( ii - d ) , ( iii - a ) , ( iv - e ) & ( v - b )

( i - c ) , ( i - a ) , ( ii - d ) , ( iv - e ) & ( v - b )

The first tetrapod vertebrates are descended from .

Osteolepid group of jawless extinct fishes

Osteolepid group of jawless agnatha

Ostracodermi group of jawless agnaths

Dipnoi group of extant Osteichthyes fishes

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 30 - Phylum Chordata>AP EAPCET Medical 2021 (6-Sep Afternoon)>Q 11

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Birds are glorified reptiles, because the birds evolved from the reptiles, and also they share the characters with reptiles?

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Important Questions on Phylum Chordata

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 30 - Phylum Chordata>AP EAPCET Medical 2021 (6-Sep Afternoon)>Q 12

Match the following correctly related to cartilaginous fishes ?

	Column I		Column II
(i)	Sphyma	(a)	Sting ray
(ii)	Torpedo	(b)	Dog fish
(iii)	Trygon	(c)	Saw fish
(iv)	Pristis	(d)	Electric ray
(v)	Scoliodon	(e)	Hammer headed shark

EASY

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 30 - Phylum Chordata>AP EAPCET - 3 Sep 2021 Forenoon>Q 13

In Deuterostomia embryonic blastopore produces _____

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 30 - Phylum Chordata>AP EAPCET - 3 Sep 2021 Forenoon>Q 14

The protochordate that doesn't have heart, respiratory pigment, blood corpuscles but performs respiration through the external body surface is _______

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 30 - Phylum Chordata>AP EAPCET - 3 Sep 2021 Forenoon>Q 15

Urinary bladder is absent in _________

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 30 - Phylum Chordata>AP EAPCET - 3 Sep 2021 Forenoon>Q 16

In the given diagram of the typical chordate. Identify the parts labelled as $1, 2, 3, 4, 5$ and select the correct option?

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