262263
Identify the correct differences between Chondrichthyes and Osterichthyes
1 Chondrichthyes have gill slits covered operculum and Osteichthyes have gill slits without operculum
2 Chondrichthyes have swim bladder and Osteichthyes do not have swim bladder
3 Chondrichthyes contain placoid scales and Osteichthyes contain cycloid scales
4 Chondrichthyes contain terminal mouth and Osteichthyes contain ventral mouth
Explanation:
C Chondrichthyes contais placoid scale, gill slits are separate and without operculum. Due to absensce of air bladder they have to swim constantly where as osteichthyes contain cycloid/ctenoid scales, they have four pairs of gills which is covered by operculum on each side. Air bladders are present which regulate buoyancy.
AP EAMCET-24.09.2020 Shift-I
Animal kingdom
262265
Which one of the following characters is not correct with respect to Ratitae
1 Flightless birds
2 Sternum without keel
3 Syrinx. clavicles are present
4 males have penis
Explanation:
C Syrinx and clavicles are not found in Ratitae. - The characters of Ratitae are flightless sternum without keel, male have penis.
TS EAMCET-03.05.2018 Shift-I
Animal kingdom
262267
In class -Chondrichthyes
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
A The notochord is a flexible rod that supports the body of the embryo. In Chondrichthyes, the notochord persists throughout life. The gill slits are separate and do not have an operculum. The operculum is a flap of tissue that covers the gills in bony fish. The skin is tough and contains minute placoid scales. Placoid scales are tooth-like scales that are embedded in the skin. Tympanum is absent. Tympanum is a membrane that helps to transmit sound waves to the inner ear. Chondrichtyes do not have a tympanum.
BHU PMT (Mains)-2010
Animal kingdom
262291
Which one of the following animal contains idiophores in its integument ?
1 Dog fish
2 Parrot
3 Siren
4 Orangeutan
Explanation:
A Dogfish : Spiny dog fish are slim, with a narrow pointed snout and characteristic white spots. They are gray above and white below. They have two dorsal fins with ungrooved large spines. Classification
262263
Identify the correct differences between Chondrichthyes and Osterichthyes
1 Chondrichthyes have gill slits covered operculum and Osteichthyes have gill slits without operculum
2 Chondrichthyes have swim bladder and Osteichthyes do not have swim bladder
3 Chondrichthyes contain placoid scales and Osteichthyes contain cycloid scales
4 Chondrichthyes contain terminal mouth and Osteichthyes contain ventral mouth
Explanation:
C Chondrichthyes contais placoid scale, gill slits are separate and without operculum. Due to absensce of air bladder they have to swim constantly where as osteichthyes contain cycloid/ctenoid scales, they have four pairs of gills which is covered by operculum on each side. Air bladders are present which regulate buoyancy.
AP EAMCET-24.09.2020 Shift-I
Animal kingdom
262265
Which one of the following characters is not correct with respect to Ratitae
1 Flightless birds
2 Sternum without keel
3 Syrinx. clavicles are present
4 males have penis
Explanation:
C Syrinx and clavicles are not found in Ratitae. - The characters of Ratitae are flightless sternum without keel, male have penis.
TS EAMCET-03.05.2018 Shift-I
Animal kingdom
262267
In class -Chondrichthyes
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
A The notochord is a flexible rod that supports the body of the embryo. In Chondrichthyes, the notochord persists throughout life. The gill slits are separate and do not have an operculum. The operculum is a flap of tissue that covers the gills in bony fish. The skin is tough and contains minute placoid scales. Placoid scales are tooth-like scales that are embedded in the skin. Tympanum is absent. Tympanum is a membrane that helps to transmit sound waves to the inner ear. Chondrichtyes do not have a tympanum.
BHU PMT (Mains)-2010
Animal kingdom
262291
Which one of the following animal contains idiophores in its integument ?
1 Dog fish
2 Parrot
3 Siren
4 Orangeutan
Explanation:
A Dogfish : Spiny dog fish are slim, with a narrow pointed snout and characteristic white spots. They are gray above and white below. They have two dorsal fins with ungrooved large spines. Classification
262263
Identify the correct differences between Chondrichthyes and Osterichthyes
1 Chondrichthyes have gill slits covered operculum and Osteichthyes have gill slits without operculum
2 Chondrichthyes have swim bladder and Osteichthyes do not have swim bladder
3 Chondrichthyes contain placoid scales and Osteichthyes contain cycloid scales
4 Chondrichthyes contain terminal mouth and Osteichthyes contain ventral mouth
Explanation:
C Chondrichthyes contais placoid scale, gill slits are separate and without operculum. Due to absensce of air bladder they have to swim constantly where as osteichthyes contain cycloid/ctenoid scales, they have four pairs of gills which is covered by operculum on each side. Air bladders are present which regulate buoyancy.
AP EAMCET-24.09.2020 Shift-I
Animal kingdom
262265
Which one of the following characters is not correct with respect to Ratitae
1 Flightless birds
2 Sternum without keel
3 Syrinx. clavicles are present
4 males have penis
Explanation:
C Syrinx and clavicles are not found in Ratitae. - The characters of Ratitae are flightless sternum without keel, male have penis.
TS EAMCET-03.05.2018 Shift-I
Animal kingdom
262267
In class -Chondrichthyes
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
A The notochord is a flexible rod that supports the body of the embryo. In Chondrichthyes, the notochord persists throughout life. The gill slits are separate and do not have an operculum. The operculum is a flap of tissue that covers the gills in bony fish. The skin is tough and contains minute placoid scales. Placoid scales are tooth-like scales that are embedded in the skin. Tympanum is absent. Tympanum is a membrane that helps to transmit sound waves to the inner ear. Chondrichtyes do not have a tympanum.
BHU PMT (Mains)-2010
Animal kingdom
262291
Which one of the following animal contains idiophores in its integument ?
1 Dog fish
2 Parrot
3 Siren
4 Orangeutan
Explanation:
A Dogfish : Spiny dog fish are slim, with a narrow pointed snout and characteristic white spots. They are gray above and white below. They have two dorsal fins with ungrooved large spines. Classification
NEET Test Series from KOTA - 10 Papers In MS WORD
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Animal kingdom
262263
Identify the correct differences between Chondrichthyes and Osterichthyes
1 Chondrichthyes have gill slits covered operculum and Osteichthyes have gill slits without operculum
2 Chondrichthyes have swim bladder and Osteichthyes do not have swim bladder
3 Chondrichthyes contain placoid scales and Osteichthyes contain cycloid scales
4 Chondrichthyes contain terminal mouth and Osteichthyes contain ventral mouth
Explanation:
C Chondrichthyes contais placoid scale, gill slits are separate and without operculum. Due to absensce of air bladder they have to swim constantly where as osteichthyes contain cycloid/ctenoid scales, they have four pairs of gills which is covered by operculum on each side. Air bladders are present which regulate buoyancy.
AP EAMCET-24.09.2020 Shift-I
Animal kingdom
262265
Which one of the following characters is not correct with respect to Ratitae
1 Flightless birds
2 Sternum without keel
3 Syrinx. clavicles are present
4 males have penis
Explanation:
C Syrinx and clavicles are not found in Ratitae. - The characters of Ratitae are flightless sternum without keel, male have penis.
TS EAMCET-03.05.2018 Shift-I
Animal kingdom
262267
In class -Chondrichthyes
1 1,2 and 3 are correct
2 1 and 2 are correct
3 2 and 4 are correct
4 1 and 3 are correct
Explanation:
A The notochord is a flexible rod that supports the body of the embryo. In Chondrichthyes, the notochord persists throughout life. The gill slits are separate and do not have an operculum. The operculum is a flap of tissue that covers the gills in bony fish. The skin is tough and contains minute placoid scales. Placoid scales are tooth-like scales that are embedded in the skin. Tympanum is absent. Tympanum is a membrane that helps to transmit sound waves to the inner ear. Chondrichtyes do not have a tympanum.
BHU PMT (Mains)-2010
Animal kingdom
262291
Which one of the following animal contains idiophores in its integument ?
1 Dog fish
2 Parrot
3 Siren
4 Orangeutan
Explanation:
A Dogfish : Spiny dog fish are slim, with a narrow pointed snout and characteristic white spots. They are gray above and white below. They have two dorsal fins with ungrooved large spines. Classification
