C The common name of Necturus is mud puppy. A genus of aquatic salamanders is called Necturus . It is also known as waterdrogs.
AIPMT-1988
Animal kingdom
262336
The following organs appeared for the first time in amphibians
1 Syrinx, urinary bladder and cloaca
2 Tympanum, sternum and lacrimal glands
3 Harderian glands, sebaceous glands and lacrimal glands
4 furcula, four chambered heart and palate
Explanation:
B Tympanus, sternum and lacrimal glands are appeared for the first time in amphibians : Tympanum (tympanic membrane or eardrum) covers the middle ear. Sternum connects to ribs and supports formation of a complete strong rib cage. Lacrimal glands are paired exocrine glands these are located on the lacrimal fossa of orbit.
AP EAMCET-2016
Animal kingdom
262337
Which of the following are exclusively marine?
1 Porifera
2 Amphibians
3 Echinodermates
4 Mollusca
Explanation:
C Echinodermata exclusively found in deep sea marine water. eg.- Echinus, Starfish. - Porifera- Lives in freshwater except few are found in saltwater, eg.-Haliciona. - Mollusca- Mostly found in freshwater, seashore, saltwater. eg.- Pila. - Amphibia- Exclusively fresh water organism and can live on both wate and land.
JIPMER-1996
Animal kingdom
262338
Spiral valve is present in
1 right auricle
2 sinus venosus
3 truncus arteriosus
4 right ventricle
Explanation:
C The truncus arteriosus in some amphibians, including lungless salamanders has a spiral valve. The truncus arteriosus is a muscular tube that extends from the heart and serves as an outflow tract. The spiral valve is a ridge with a spiral form that extends into the truncus arteriousus lumen. By creating turbulence, it helps to slow down and regulate blood flow.
C The common name of Necturus is mud puppy. A genus of aquatic salamanders is called Necturus . It is also known as waterdrogs.
AIPMT-1988
Animal kingdom
262336
The following organs appeared for the first time in amphibians
1 Syrinx, urinary bladder and cloaca
2 Tympanum, sternum and lacrimal glands
3 Harderian glands, sebaceous glands and lacrimal glands
4 furcula, four chambered heart and palate
Explanation:
B Tympanus, sternum and lacrimal glands are appeared for the first time in amphibians : Tympanum (tympanic membrane or eardrum) covers the middle ear. Sternum connects to ribs and supports formation of a complete strong rib cage. Lacrimal glands are paired exocrine glands these are located on the lacrimal fossa of orbit.
AP EAMCET-2016
Animal kingdom
262337
Which of the following are exclusively marine?
1 Porifera
2 Amphibians
3 Echinodermates
4 Mollusca
Explanation:
C Echinodermata exclusively found in deep sea marine water. eg.- Echinus, Starfish. - Porifera- Lives in freshwater except few are found in saltwater, eg.-Haliciona. - Mollusca- Mostly found in freshwater, seashore, saltwater. eg.- Pila. - Amphibia- Exclusively fresh water organism and can live on both wate and land.
JIPMER-1996
Animal kingdom
262338
Spiral valve is present in
1 right auricle
2 sinus venosus
3 truncus arteriosus
4 right ventricle
Explanation:
C The truncus arteriosus in some amphibians, including lungless salamanders has a spiral valve. The truncus arteriosus is a muscular tube that extends from the heart and serves as an outflow tract. The spiral valve is a ridge with a spiral form that extends into the truncus arteriousus lumen. By creating turbulence, it helps to slow down and regulate blood flow.
C The common name of Necturus is mud puppy. A genus of aquatic salamanders is called Necturus . It is also known as waterdrogs.
AIPMT-1988
Animal kingdom
262336
The following organs appeared for the first time in amphibians
1 Syrinx, urinary bladder and cloaca
2 Tympanum, sternum and lacrimal glands
3 Harderian glands, sebaceous glands and lacrimal glands
4 furcula, four chambered heart and palate
Explanation:
B Tympanus, sternum and lacrimal glands are appeared for the first time in amphibians : Tympanum (tympanic membrane or eardrum) covers the middle ear. Sternum connects to ribs and supports formation of a complete strong rib cage. Lacrimal glands are paired exocrine glands these are located on the lacrimal fossa of orbit.
AP EAMCET-2016
Animal kingdom
262337
Which of the following are exclusively marine?
1 Porifera
2 Amphibians
3 Echinodermates
4 Mollusca
Explanation:
C Echinodermata exclusively found in deep sea marine water. eg.- Echinus, Starfish. - Porifera- Lives in freshwater except few are found in saltwater, eg.-Haliciona. - Mollusca- Mostly found in freshwater, seashore, saltwater. eg.- Pila. - Amphibia- Exclusively fresh water organism and can live on both wate and land.
JIPMER-1996
Animal kingdom
262338
Spiral valve is present in
1 right auricle
2 sinus venosus
3 truncus arteriosus
4 right ventricle
Explanation:
C The truncus arteriosus in some amphibians, including lungless salamanders has a spiral valve. The truncus arteriosus is a muscular tube that extends from the heart and serves as an outflow tract. The spiral valve is a ridge with a spiral form that extends into the truncus arteriousus lumen. By creating turbulence, it helps to slow down and regulate blood flow.
C The common name of Necturus is mud puppy. A genus of aquatic salamanders is called Necturus . It is also known as waterdrogs.
AIPMT-1988
Animal kingdom
262336
The following organs appeared for the first time in amphibians
1 Syrinx, urinary bladder and cloaca
2 Tympanum, sternum and lacrimal glands
3 Harderian glands, sebaceous glands and lacrimal glands
4 furcula, four chambered heart and palate
Explanation:
B Tympanus, sternum and lacrimal glands are appeared for the first time in amphibians : Tympanum (tympanic membrane or eardrum) covers the middle ear. Sternum connects to ribs and supports formation of a complete strong rib cage. Lacrimal glands are paired exocrine glands these are located on the lacrimal fossa of orbit.
AP EAMCET-2016
Animal kingdom
262337
Which of the following are exclusively marine?
1 Porifera
2 Amphibians
3 Echinodermates
4 Mollusca
Explanation:
C Echinodermata exclusively found in deep sea marine water. eg.- Echinus, Starfish. - Porifera- Lives in freshwater except few are found in saltwater, eg.-Haliciona. - Mollusca- Mostly found in freshwater, seashore, saltwater. eg.- Pila. - Amphibia- Exclusively fresh water organism and can live on both wate and land.
JIPMER-1996
Animal kingdom
262338
Spiral valve is present in
1 right auricle
2 sinus venosus
3 truncus arteriosus
4 right ventricle
Explanation:
C The truncus arteriosus in some amphibians, including lungless salamanders has a spiral valve. The truncus arteriosus is a muscular tube that extends from the heart and serves as an outflow tract. The spiral valve is a ridge with a spiral form that extends into the truncus arteriousus lumen. By creating turbulence, it helps to slow down and regulate blood flow.
