B A fishes heart is called a venous heart because the heart receives blood from veins and sends it to the gills for oxygenation the heart is two-chambered and performs single circulation where it receives and pumps only deoxygenated blood. The heart in fishes is described as myogenic, bronchial and venous heart.
AP EAPCET-12.07.2022 Shift-I
Animal kingdom
262258
Which of the following organ found in bony fishes keeps them floating in water without much expenditure of energy?
1 Gills
2 Air bladder
3 Bursa fabrisci
4 Diphycercal caudal fin
Explanation:
B Air bladder found in bony fishes is a hydrostatic organ which regulate buoyancy.
AP EAMCET-12.07.2022 Shift-II
Animal kingdom
262259
Which of the following is exclusively marine and considered as scavenger (feeds on dead or dying fish)?
1 Hag fish
2 Lamprey
3 Lung fishes
4 Latemaria
Explanation:
A Hagfish are eel-like fish that are found in all oceans except the Arctic and Antarctic. They are exclusively marine and are considered as scavengers. They feed on dead or decaying fish by rasping their teeth on the fish's flesh. Hagfish are also known for their ability to produce a large amount of slime when threat end.
AP EAPCET-11.07.2022 Shift-I
Animal kingdom
262261
In fishes, maximizes oxygen transfer from water into the gills.
1 more permeability for solutes
2 more thin membranes of gills
3 more number of gills
4 counter-current flow
Explanation:
D Fish use gills for gas exchange. Counter-current flow - As the blood flows in the opposite to the water, it always flows next to water that has given up less of its oxygen. This way the blood is absorbing more and more oxygen as it moves along. The counter current exchange system found in fish gill maximizes gas exchange efficiency by decreasing the oxygen content of the blood leaving the gill filament.
B A fishes heart is called a venous heart because the heart receives blood from veins and sends it to the gills for oxygenation the heart is two-chambered and performs single circulation where it receives and pumps only deoxygenated blood. The heart in fishes is described as myogenic, bronchial and venous heart.
AP EAPCET-12.07.2022 Shift-I
Animal kingdom
262258
Which of the following organ found in bony fishes keeps them floating in water without much expenditure of energy?
1 Gills
2 Air bladder
3 Bursa fabrisci
4 Diphycercal caudal fin
Explanation:
B Air bladder found in bony fishes is a hydrostatic organ which regulate buoyancy.
AP EAMCET-12.07.2022 Shift-II
Animal kingdom
262259
Which of the following is exclusively marine and considered as scavenger (feeds on dead or dying fish)?
1 Hag fish
2 Lamprey
3 Lung fishes
4 Latemaria
Explanation:
A Hagfish are eel-like fish that are found in all oceans except the Arctic and Antarctic. They are exclusively marine and are considered as scavengers. They feed on dead or decaying fish by rasping their teeth on the fish's flesh. Hagfish are also known for their ability to produce a large amount of slime when threat end.
AP EAPCET-11.07.2022 Shift-I
Animal kingdom
262261
In fishes, maximizes oxygen transfer from water into the gills.
1 more permeability for solutes
2 more thin membranes of gills
3 more number of gills
4 counter-current flow
Explanation:
D Fish use gills for gas exchange. Counter-current flow - As the blood flows in the opposite to the water, it always flows next to water that has given up less of its oxygen. This way the blood is absorbing more and more oxygen as it moves along. The counter current exchange system found in fish gill maximizes gas exchange efficiency by decreasing the oxygen content of the blood leaving the gill filament.
B A fishes heart is called a venous heart because the heart receives blood from veins and sends it to the gills for oxygenation the heart is two-chambered and performs single circulation where it receives and pumps only deoxygenated blood. The heart in fishes is described as myogenic, bronchial and venous heart.
AP EAPCET-12.07.2022 Shift-I
Animal kingdom
262258
Which of the following organ found in bony fishes keeps them floating in water without much expenditure of energy?
1 Gills
2 Air bladder
3 Bursa fabrisci
4 Diphycercal caudal fin
Explanation:
B Air bladder found in bony fishes is a hydrostatic organ which regulate buoyancy.
AP EAMCET-12.07.2022 Shift-II
Animal kingdom
262259
Which of the following is exclusively marine and considered as scavenger (feeds on dead or dying fish)?
1 Hag fish
2 Lamprey
3 Lung fishes
4 Latemaria
Explanation:
A Hagfish are eel-like fish that are found in all oceans except the Arctic and Antarctic. They are exclusively marine and are considered as scavengers. They feed on dead or decaying fish by rasping their teeth on the fish's flesh. Hagfish are also known for their ability to produce a large amount of slime when threat end.
AP EAPCET-11.07.2022 Shift-I
Animal kingdom
262261
In fishes, maximizes oxygen transfer from water into the gills.
1 more permeability for solutes
2 more thin membranes of gills
3 more number of gills
4 counter-current flow
Explanation:
D Fish use gills for gas exchange. Counter-current flow - As the blood flows in the opposite to the water, it always flows next to water that has given up less of its oxygen. This way the blood is absorbing more and more oxygen as it moves along. The counter current exchange system found in fish gill maximizes gas exchange efficiency by decreasing the oxygen content of the blood leaving the gill filament.
B A fishes heart is called a venous heart because the heart receives blood from veins and sends it to the gills for oxygenation the heart is two-chambered and performs single circulation where it receives and pumps only deoxygenated blood. The heart in fishes is described as myogenic, bronchial and venous heart.
AP EAPCET-12.07.2022 Shift-I
Animal kingdom
262258
Which of the following organ found in bony fishes keeps them floating in water without much expenditure of energy?
1 Gills
2 Air bladder
3 Bursa fabrisci
4 Diphycercal caudal fin
Explanation:
B Air bladder found in bony fishes is a hydrostatic organ which regulate buoyancy.
AP EAMCET-12.07.2022 Shift-II
Animal kingdom
262259
Which of the following is exclusively marine and considered as scavenger (feeds on dead or dying fish)?
1 Hag fish
2 Lamprey
3 Lung fishes
4 Latemaria
Explanation:
A Hagfish are eel-like fish that are found in all oceans except the Arctic and Antarctic. They are exclusively marine and are considered as scavengers. They feed on dead or decaying fish by rasping their teeth on the fish's flesh. Hagfish are also known for their ability to produce a large amount of slime when threat end.
AP EAPCET-11.07.2022 Shift-I
Animal kingdom
262261
In fishes, maximizes oxygen transfer from water into the gills.
1 more permeability for solutes
2 more thin membranes of gills
3 more number of gills
4 counter-current flow
Explanation:
D Fish use gills for gas exchange. Counter-current flow - As the blood flows in the opposite to the water, it always flows next to water that has given up less of its oxygen. This way the blood is absorbing more and more oxygen as it moves along. The counter current exchange system found in fish gill maximizes gas exchange efficiency by decreasing the oxygen content of the blood leaving the gill filament.
