262292
Which of the following represents the correct combination without any exception?
1 Characteristics - Mouth ventral, gills without operculum; skin with placoid scales; persistent notochord | Class - Chondrichthyes
2 Characteristics - Sucking and circular mouth; jaws absent, integument without scales; paired appendages | Class - Cyclostomata
3 Characteristics - Body covered with feathers; skin moist and glandular; fore-limbs form wings; lungs with air sacs | Class - Aves
4 Characteristics - Mammary gland; hair on body; pinnae; two pairs of limbs | Class - Mammalia
Explanation:
A Chondrichthyes are marine animals with streamlined body and have cartilaginous endoskeleton. Mouth is located ventrally. Notochord is persistent throughout life. Gills slits are separate and without operculum. The skin is tough, containing minute placoid scales. Teeth are modified placoid scales which are backwardly directed. Their Jaw are very powerful.
AIPMT-2015
Animal kingdom
262295
Which one of the following pairs of animals comprises 'Jawless fishes' ?
1 Guppies and hag fishes
2 Lamprey and eels
3 Mackeral and Rohu
4 Lampreys and hag fishes
Explanation:
D Lampreys and hag fishes are "Jaw less" fishes. The marine, elongated and freshwater fishes lacking a jaw and paired appendages sometimes considered to belong to the taxon Agnatha. Both lampreys and hag fishes are present in living form. The lampreys are parasitic fishes. They rasp away flesh and suck out blood from the host fishes. The hag fishes feed upon marine worms and other aquatic invertbrate animals.
AIPMT-2009
Animal kingdom
262296
Sharks and dogfishes differ from skates and rays by
1 Their pectoral fins distinctly marked off from cyclindrical bodies
2 Gill slits are ventrally placed
3 Head and trunk are widened considerably
4 Distinct demarcation between body and tail
Explanation:
A Sharks and dogfishes differ from skates and rays by their pectoral fins distinctly marked off from cylindrical bodies.
NEET (Karnataka)-2013
Animal kingdom
262297
Study the following features of a fish
1 A and B
2 B and D
3 $\mathrm{A}$ and $\mathrm{C}$
4 A and D
Explanation:
C Neoceratodus belonging to the genus of lungfish which isthe family of Neoceratodontidae. Neoceratodus jorsteri is the only species and is considered as living fossil.
AP EAMCET-2008
Animal kingdom
262299
Which of the following is found exclusively in the sea water?
1 Prawns
2 Trygon
3 Crabs
4 Oysters
Explanation:
B Trygon found exclusively in the sea water. It is also called as sting ray is a cartilaginous fish which found exclusively in marine water. It typically inhabits sandy or muddy shallow, coastal waters and is life threatening due to its venomous tail spine. Prawns, Crabs and Oysters can be found in both fresh and salt water also.
262292
Which of the following represents the correct combination without any exception?
1 Characteristics - Mouth ventral, gills without operculum; skin with placoid scales; persistent notochord | Class - Chondrichthyes
2 Characteristics - Sucking and circular mouth; jaws absent, integument without scales; paired appendages | Class - Cyclostomata
3 Characteristics - Body covered with feathers; skin moist and glandular; fore-limbs form wings; lungs with air sacs | Class - Aves
4 Characteristics - Mammary gland; hair on body; pinnae; two pairs of limbs | Class - Mammalia
Explanation:
A Chondrichthyes are marine animals with streamlined body and have cartilaginous endoskeleton. Mouth is located ventrally. Notochord is persistent throughout life. Gills slits are separate and without operculum. The skin is tough, containing minute placoid scales. Teeth are modified placoid scales which are backwardly directed. Their Jaw are very powerful.
AIPMT-2015
Animal kingdom
262295
Which one of the following pairs of animals comprises 'Jawless fishes' ?
1 Guppies and hag fishes
2 Lamprey and eels
3 Mackeral and Rohu
4 Lampreys and hag fishes
Explanation:
D Lampreys and hag fishes are "Jaw less" fishes. The marine, elongated and freshwater fishes lacking a jaw and paired appendages sometimes considered to belong to the taxon Agnatha. Both lampreys and hag fishes are present in living form. The lampreys are parasitic fishes. They rasp away flesh and suck out blood from the host fishes. The hag fishes feed upon marine worms and other aquatic invertbrate animals.
AIPMT-2009
Animal kingdom
262296
Sharks and dogfishes differ from skates and rays by
1 Their pectoral fins distinctly marked off from cyclindrical bodies
2 Gill slits are ventrally placed
3 Head and trunk are widened considerably
4 Distinct demarcation between body and tail
Explanation:
A Sharks and dogfishes differ from skates and rays by their pectoral fins distinctly marked off from cylindrical bodies.
NEET (Karnataka)-2013
Animal kingdom
262297
Study the following features of a fish
1 A and B
2 B and D
3 $\mathrm{A}$ and $\mathrm{C}$
4 A and D
Explanation:
C Neoceratodus belonging to the genus of lungfish which isthe family of Neoceratodontidae. Neoceratodus jorsteri is the only species and is considered as living fossil.
AP EAMCET-2008
Animal kingdom
262299
Which of the following is found exclusively in the sea water?
1 Prawns
2 Trygon
3 Crabs
4 Oysters
Explanation:
B Trygon found exclusively in the sea water. It is also called as sting ray is a cartilaginous fish which found exclusively in marine water. It typically inhabits sandy or muddy shallow, coastal waters and is life threatening due to its venomous tail spine. Prawns, Crabs and Oysters can be found in both fresh and salt water also.
262292
Which of the following represents the correct combination without any exception?
1 Characteristics - Mouth ventral, gills without operculum; skin with placoid scales; persistent notochord | Class - Chondrichthyes
2 Characteristics - Sucking and circular mouth; jaws absent, integument without scales; paired appendages | Class - Cyclostomata
3 Characteristics - Body covered with feathers; skin moist and glandular; fore-limbs form wings; lungs with air sacs | Class - Aves
4 Characteristics - Mammary gland; hair on body; pinnae; two pairs of limbs | Class - Mammalia
Explanation:
A Chondrichthyes are marine animals with streamlined body and have cartilaginous endoskeleton. Mouth is located ventrally. Notochord is persistent throughout life. Gills slits are separate and without operculum. The skin is tough, containing minute placoid scales. Teeth are modified placoid scales which are backwardly directed. Their Jaw are very powerful.
AIPMT-2015
Animal kingdom
262295
Which one of the following pairs of animals comprises 'Jawless fishes' ?
1 Guppies and hag fishes
2 Lamprey and eels
3 Mackeral and Rohu
4 Lampreys and hag fishes
Explanation:
D Lampreys and hag fishes are "Jaw less" fishes. The marine, elongated and freshwater fishes lacking a jaw and paired appendages sometimes considered to belong to the taxon Agnatha. Both lampreys and hag fishes are present in living form. The lampreys are parasitic fishes. They rasp away flesh and suck out blood from the host fishes. The hag fishes feed upon marine worms and other aquatic invertbrate animals.
AIPMT-2009
Animal kingdom
262296
Sharks and dogfishes differ from skates and rays by
1 Their pectoral fins distinctly marked off from cyclindrical bodies
2 Gill slits are ventrally placed
3 Head and trunk are widened considerably
4 Distinct demarcation between body and tail
Explanation:
A Sharks and dogfishes differ from skates and rays by their pectoral fins distinctly marked off from cylindrical bodies.
NEET (Karnataka)-2013
Animal kingdom
262297
Study the following features of a fish
1 A and B
2 B and D
3 $\mathrm{A}$ and $\mathrm{C}$
4 A and D
Explanation:
C Neoceratodus belonging to the genus of lungfish which isthe family of Neoceratodontidae. Neoceratodus jorsteri is the only species and is considered as living fossil.
AP EAMCET-2008
Animal kingdom
262299
Which of the following is found exclusively in the sea water?
1 Prawns
2 Trygon
3 Crabs
4 Oysters
Explanation:
B Trygon found exclusively in the sea water. It is also called as sting ray is a cartilaginous fish which found exclusively in marine water. It typically inhabits sandy or muddy shallow, coastal waters and is life threatening due to its venomous tail spine. Prawns, Crabs and Oysters can be found in both fresh and salt water also.
262292
Which of the following represents the correct combination without any exception?
1 Characteristics - Mouth ventral, gills without operculum; skin with placoid scales; persistent notochord | Class - Chondrichthyes
2 Characteristics - Sucking and circular mouth; jaws absent, integument without scales; paired appendages | Class - Cyclostomata
3 Characteristics - Body covered with feathers; skin moist and glandular; fore-limbs form wings; lungs with air sacs | Class - Aves
4 Characteristics - Mammary gland; hair on body; pinnae; two pairs of limbs | Class - Mammalia
Explanation:
A Chondrichthyes are marine animals with streamlined body and have cartilaginous endoskeleton. Mouth is located ventrally. Notochord is persistent throughout life. Gills slits are separate and without operculum. The skin is tough, containing minute placoid scales. Teeth are modified placoid scales which are backwardly directed. Their Jaw are very powerful.
AIPMT-2015
Animal kingdom
262295
Which one of the following pairs of animals comprises 'Jawless fishes' ?
1 Guppies and hag fishes
2 Lamprey and eels
3 Mackeral and Rohu
4 Lampreys and hag fishes
Explanation:
D Lampreys and hag fishes are "Jaw less" fishes. The marine, elongated and freshwater fishes lacking a jaw and paired appendages sometimes considered to belong to the taxon Agnatha. Both lampreys and hag fishes are present in living form. The lampreys are parasitic fishes. They rasp away flesh and suck out blood from the host fishes. The hag fishes feed upon marine worms and other aquatic invertbrate animals.
AIPMT-2009
Animal kingdom
262296
Sharks and dogfishes differ from skates and rays by
1 Their pectoral fins distinctly marked off from cyclindrical bodies
2 Gill slits are ventrally placed
3 Head and trunk are widened considerably
4 Distinct demarcation between body and tail
Explanation:
A Sharks and dogfishes differ from skates and rays by their pectoral fins distinctly marked off from cylindrical bodies.
NEET (Karnataka)-2013
Animal kingdom
262297
Study the following features of a fish
1 A and B
2 B and D
3 $\mathrm{A}$ and $\mathrm{C}$
4 A and D
Explanation:
C Neoceratodus belonging to the genus of lungfish which isthe family of Neoceratodontidae. Neoceratodus jorsteri is the only species and is considered as living fossil.
AP EAMCET-2008
Animal kingdom
262299
Which of the following is found exclusively in the sea water?
1 Prawns
2 Trygon
3 Crabs
4 Oysters
Explanation:
B Trygon found exclusively in the sea water. It is also called as sting ray is a cartilaginous fish which found exclusively in marine water. It typically inhabits sandy or muddy shallow, coastal waters and is life threatening due to its venomous tail spine. Prawns, Crabs and Oysters can be found in both fresh and salt water also.
262292
Which of the following represents the correct combination without any exception?
1 Characteristics - Mouth ventral, gills without operculum; skin with placoid scales; persistent notochord | Class - Chondrichthyes
2 Characteristics - Sucking and circular mouth; jaws absent, integument without scales; paired appendages | Class - Cyclostomata
3 Characteristics - Body covered with feathers; skin moist and glandular; fore-limbs form wings; lungs with air sacs | Class - Aves
4 Characteristics - Mammary gland; hair on body; pinnae; two pairs of limbs | Class - Mammalia
Explanation:
A Chondrichthyes are marine animals with streamlined body and have cartilaginous endoskeleton. Mouth is located ventrally. Notochord is persistent throughout life. Gills slits are separate and without operculum. The skin is tough, containing minute placoid scales. Teeth are modified placoid scales which are backwardly directed. Their Jaw are very powerful.
AIPMT-2015
Animal kingdom
262295
Which one of the following pairs of animals comprises 'Jawless fishes' ?
1 Guppies and hag fishes
2 Lamprey and eels
3 Mackeral and Rohu
4 Lampreys and hag fishes
Explanation:
D Lampreys and hag fishes are "Jaw less" fishes. The marine, elongated and freshwater fishes lacking a jaw and paired appendages sometimes considered to belong to the taxon Agnatha. Both lampreys and hag fishes are present in living form. The lampreys are parasitic fishes. They rasp away flesh and suck out blood from the host fishes. The hag fishes feed upon marine worms and other aquatic invertbrate animals.
AIPMT-2009
Animal kingdom
262296
Sharks and dogfishes differ from skates and rays by
1 Their pectoral fins distinctly marked off from cyclindrical bodies
2 Gill slits are ventrally placed
3 Head and trunk are widened considerably
4 Distinct demarcation between body and tail
Explanation:
A Sharks and dogfishes differ from skates and rays by their pectoral fins distinctly marked off from cylindrical bodies.
NEET (Karnataka)-2013
Animal kingdom
262297
Study the following features of a fish
1 A and B
2 B and D
3 $\mathrm{A}$ and $\mathrm{C}$
4 A and D
Explanation:
C Neoceratodus belonging to the genus of lungfish which isthe family of Neoceratodontidae. Neoceratodus jorsteri is the only species and is considered as living fossil.
AP EAMCET-2008
Animal kingdom
262299
Which of the following is found exclusively in the sea water?
1 Prawns
2 Trygon
3 Crabs
4 Oysters
Explanation:
B Trygon found exclusively in the sea water. It is also called as sting ray is a cartilaginous fish which found exclusively in marine water. It typically inhabits sandy or muddy shallow, coastal waters and is life threatening due to its venomous tail spine. Prawns, Crabs and Oysters can be found in both fresh and salt water also.
