Who among the following have venous heart? (1) Mammals (2) Reptilians (3) Fishes (4) Amphibians

Who among the following have venous heart? (1) Mammals (2) Reptilians (3) Fishes (4) Amphibians
by

1 Answer

Answer :

(3) Fishes Explanation: There are over 20,000 species of fish, divided into three groups : bony fish, cartilaginous fish and jawiess fish. Bony fish, which are the most numerous, have skeletons, of bone, and swimbladders (gas-filled organs) to keep them afloat. Cartilaginous fish, such as sharks, rays and raffish, are mostly marine hunters; they have skeletons made of cartilage and sandpaper-like skin. The primitive jawless fish have sucker-like mouths, and include lampreys and hagfish.
by
selected

Related questions

Who among the following have venous heart? (1) Mammals (2) Reptilians (3) Fishes (4) Amphibians

Description : Who among the following have venous heart? (1) Mammals (2) Reptilians (3) Fishes (4) Amphibians

Last Answer : Fishes

Types of vertebrate animals which creep and crawl are called – (1) mammalians (2) amphibians (3) mollusks (4) reptilians

Description : Types of vertebrate animals which creep and crawl are called – (1) mammalians (2) amphibians (3) mollusks (4) reptilians

Last Answer : (4) reptilians Explanation: The types of vertebrate animals which creep and crawl are called reptilians.

Types of vertebrate animals which creep and crawl are called : (1) mammalians (2) amphibians (3) mollusks (4) reptilians

Description : Types of vertebrate animals which creep and crawl are called : (1) mammalians (2) amphibians (3) mollusks (4) reptilians

Last Answer : reptilians

Which one of the following categories of animals, is correctly described with no single exception in it? (a) All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal). (b) All bony fishes have four pairs of gills and an operculum on each side. (c) All sponges are marine and have collared cells. (d) All mammals are viviparous and possess diaphragm for breathing.

Description : Which one of the following categories of animals, is correctly described with no single exception in it? (a) All reptiles possess scales, have a three chambered heart and are cold blooded ( ... marine and have collared cells. (d) All mammals are viviparous and possess diaphragm for breathing.

Last Answer : (b) All bony fishes have four pairs of gills and an operculum on each side

Which one of the following categories of animals, is correctly described with no single exception in it? (a) All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal). (b) All bony fishes have four pairs of gills and an operculum on each side. (c) All sponges are marine and have collared cells. (d) All mammals are viviparous and possess diaphragm for breathing.

Description : Which one of the following categories of animals, is correctly described with no single exception in it? (a) All reptiles possess scales, have a three chambered heart and are cold blooded ( ... marine and have collared cells. (d) All mammals are viviparous and possess diaphragm for breathing.

Last Answer : (b) All bony fishes have four pairs of gills and an operculum on each side.

Assertion : Lateral line system is found in fishes and aquatic larval amphibians. Reason : Lateral line system has receptor of sensory cells derived f

Description : Assertion : Lateral line system is found in fishes and aquatic larval amphibians. Reason : Lateral line system has receptor of sensory cells derived f

Last Answer : Assertion : Lateral line system is found in fishes and aquatic larval amphibians. Reason : Lateral line ... D. If both Assertion and Reason are false.

Assertion (A) `:` Amphibians have evolved from fishes . Reason (R ) `:` Archaeopteryx is a fossil linking fishes and amphibians `:`

Description : Assertion (A) `:` Amphibians have evolved from fishes . Reason (R ) `:` Archaeopteryx is a fossil linking fishes and amphibians `:`

Last Answer : Assertion (A) `:` Amphibians have evolved from fishes . Reason (R ) `:` Archaeopteryx is a ... false D. If both Assertion and Reason are false.

Why is the occurrence of eyelids in amphibians in comparison to their absence in fishes an adaptation to terrestrial life?

Description : Why is the occurrence of eyelids in amphibians in comparison to their absence in fishes an adaptation to terrestrial life?

Last Answer : Eyelids associated to lacrimal glands protect and keep eyes lubricated against damage from the great luminosity of terrestrial environments. Fishes do not have eyelids since their eyes are in constant contact with the fluid medium.

Is fecundation in amphibians external or internal? In this aspect are amphibians evolutionarily proximal to fishes or to reptiles?

Description : Is fecundation in amphibians external or internal? In this aspect are amphibians evolutionarily proximal to fishes or to reptiles?

Last Answer : In the majority of the amphibian species fecundation is external. This feature is common to bony fishes too and it shows that the reproductive system and the embryonic development of ... egg cells. This phenomenon does not characterize internal fecundation since the gametes unite in water.

How different are the respiration in fishes and the respiration in adult amphibians?

Description : How different are the respiration in fishes and the respiration in adult amphibians?

Last Answer : In fishes gas exchange is done by direct contact of water with the branchiae (gills). Gases gain and exit the circulation through the gills. In adult amphibians gas exchange is done through the ... breathes through gills even as an adult. Frog Facts Review - Image Diversity: axolotl amphibian skin

Bones are pneumatic in - (1) Fishes (2) Amphibians (3) Reptiles (4) Birds

Description : Bones are pneumatic in - (1) Fishes (2) Amphibians (3) Reptiles (4) Birds

Last Answer : (4) Birds Explanation: Pneumatic boneis is hollow bone filled with air, connected to the respiratory system. Many of a bird's bones are pneumatic, with struts across their ... , certain physical characteristics are required. Flying birds have evolved reduced weight through several characteristics.

Darvvin finches' refers to a group of - (1) Fishes (2) Lizards (3) Birds (4) Amphibians

Description : Darvvin finches' refers to a group of - (1) Fishes (2) Lizards (3) Birds (4) Amphibians

Last Answer : (3) Birds Explanation: Darwin's finches (also known as the Galapagos finches) are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe ... . All are found only on the Galapagos Islands, except the Cocos Island Finch from Cocos Island.

‘Darwin finches’ refer to a group of : (1) Fishes (2) Lizards (3) Birds (4) Amphibians

Description : ‘Darwin finches’ refer to a group of : (1) Fishes (2) Lizards (3) Birds (4) Amphibians

Last Answer : (3) Birds Explanation: Darwin's finches are a group of about 15 species of passerine birds. They often are classified as the subfamily Geospizinae or tribe Geospizini. They were first collected by ... , and the beaks are highly adapted to different food sources. The birds are all dull-coloured.

Bones are pneumatic in (1) Fishes (2) Amphibians (3) Reptiles (4) Birds

Description : Bones are pneumatic in (1) Fishes (2) Amphibians (3) Reptiles (4) Birds

Last Answer : Birds

‘Darwin finches’ refer to a group of : (1) Fishes (2) Lizards (3) Birds (4) Amphibians

Description : ‘Darwin finches’ refer to a group of : (1) Fishes (2) Lizards (3) Birds (4) Amphibians

Last Answer : Birds

What is the difference between mammals and amphibians?

Description : What is the difference between mammals and amphibians?

Last Answer : Amphibians lay eggs and do not produce milk. Animals give birth to their young and produce milk. Those are the main differences.

Syrinx is the voice box in - (1) Amphibians (2) Reptiles (3) Birds (4) Mammals

Description : Syrinx is the voice box in - (1) Amphibians (2) Reptiles (3) Birds (4) Mammals

Last Answer : (3) Birds Explanation: Syrinx is the name for the vocal organ of birds. Located at the base of a bird's trachea, it produces sounds without the vocal cords of mammals. The sound is ... the membrana tympaniformis (the walls of the syrinx) and the pessulus caused by air flowing through the syrinx.

Amongst the animal groups given below, which one appears to be more vulnerable to extinction? A. Insects B. Mammals C. Amphibians D. Reptiles

Description : Amongst the animal groups given below, which one appears to be more vulnerable to extinction? A. Insects B. Mammals C. Amphibians D. Reptiles

Last Answer : C. Amphibians

Syrinx is the voice box in (1) Amphibians (2) Reptiles (3) Birds (4) Mammals

Description : Syrinx is the voice box in (1) Amphibians (2) Reptiles (3) Birds (4) Mammals

Last Answer : Birds

Which group of vertebrates comprises the highest number of endangered species? (a) Mammals (b) Fishes (c) Reptiles (d) Birds

Description : Which group of vertebrates comprises the highest number of endangered species? (a) Mammals (b) Fishes (c) Reptiles (d) Birds

Last Answer : (a) Mammals

Which one of the following statements is incorrect? (a) The principle of countercurrent flow facilitates efficient respiration in gills of fishes. (b) The residual air in lungs slightly decreases the efficiency of respiration in mammals. (c) The presence of non-respiratory air sacs, increases the efficiency of respiration in birds. (d) In insects, circulating body fluids serve to distribute oxygen to tissues.

Description : Which one of the following statements is incorrect? (a) The principle of countercurrent flow facilitates efficient respiration in gills of fishes. (b) The residual air in lungs slightly decreases the ... in birds. (d) In insects, circulating body fluids serve to distribute oxygen to tissues.

Last Answer : (b) The residual air in lungs slightly decreases the efficiency of respiration in mammals.

Are reptilians exempt from vaccine requirements?

Description : Are reptilians exempt from vaccine requirements?

Last Answer : Well guess Mark Zuckerberg is behind all of this then. He’s a lizard in human form after all ~

What do you think about Reptilians, shapeshifters...?

Description : What do you think about Reptilians, shapeshifters...?

Last Answer : drinking the fire water again??

Why the heart of fish is called venous heart?

Description : Why the heart of fish is called venous heart?

Last Answer : Fish heart called venous heart becuz blood passes only oncethrough the heart unlike teresstrial animals in which it passestwice.

Nitroglycerin, either directly or through reflexes, results in which one of the following effects (a) Decreased heart rate (b) Decreased venous capacitance (c) Increased afterload (d) Increased cardiac force (e) Increased diastolic intramyocardial fiber tension

Description : Nitroglycerin, either directly or through reflexes, results in which one of the following effects (a) Decreased heart rate (b) Decreased venous capacitance (c) Increased afterload (d) Increased cardiac force (e) Increased diastolic intramyocardial fiber tension

Last Answer : Ans: D

When digoxin is used in a patient with congestive heart failure (CHF), it works by exerting a positive effect on (a) Stroke volume (b) Total peripheral resistance (c) Heart rate (d) Blood pressure (e) Venous return

Description : When digoxin is used in a patient with congestive heart failure (CHF), it works by exerting a positive effect on (a) Stroke volume (b) Total peripheral resistance (c) Heart rate (d) Blood pressure (e) Venous return

Last Answer : Ans: A

The chamber of the heart that receives deoxygenated blood from the various parts of the body is (a) Sinus venous (b) Left auricle (c) Right auricle (d) Right venous

Description : The chamber of the heart that receives deoxygenated blood from the various parts of the body is (a) Sinus venous (b) Left auricle (c) Right auricle (d) Right venous

Last Answer : Ans:(d)

Does the fish heart pump venous or arterial blood?

Description : Does the fish heart pump venous or arterial blood?

Last Answer : The venous blood coming from the tissues enters the atrium and passes to the ventricle that then pumps the blood towards the gills. After oxygenation in the gills the arterial blood goes to the tissues. So the fish heart pumps venous blood.

Do the arteries that carry blood from the heart to the lungs contain arterial or venous blood? What happens to the blood when it passes through the lungs?

Description : Do the arteries that carry blood from the heart to the lungs contain arterial or venous blood? What happens to the blood when it passes through the lungs?

Last Answer : Arteries of the pulmonary circulation are arteries that carry venous blood and not arterial blood. When the blood passes within the alveolar capillaries of the lungs hematosis (oxygenation) occurs and carbon dioxide is released to the exterior.

What are the blood vessels that carry venous blood to the heart? What is the blood vessel that collects arterial blood from the heart?

Description : What are the blood vessels that carry venous blood to the heart? What is the blood vessel that collects arterial blood from the heart?

Last Answer : The blood vessels that debouch in the heart carrying venous blood are the inferior and the superior vena cava. The blood vessel that carries arterial blood from the heart is the aorta. Breathing Process Review - Image Diversity: vena cava aorta

In humans, blood passes from the post caval to the diastolic right atrium of heart due to (a) stimulation of the sino auricular node (b) pressure difference between the post caval and atrium (c) pushing open of the venous valves (d) suction pull.

Description : In humans, blood passes from the post caval to the diastolic right atrium of heart due to (a) stimulation of the sino auricular node (b) pressure difference between the post caval and atrium (c) pushing open of the venous valves (d) suction pull.

Last Answer : (b) pressure difference between the post caval and atrium

Central venous pressure is measured in which of the following heart chambers? a) Right atrium The pressure in the right atrium is used to assess right ventricular function and venous blood return to the heart. b) Left atrium The left atrium receives oxygenated blood from the pulmonary circulation. c) Left ventricle The left ventricle receives oxygenated blood from the left atrium. d) Right ventricle The right ventricle is not the central collecting chamber of venous circulation.

Description : Central venous pressure is measured in which of the following heart chambers? a) Right atrium The pressure in the right atrium is used to assess right ventricular function and venous blood return ... d) Right ventricle The right ventricle is not the central collecting chamber of venous circulation.

Last Answer : a) Right atrium The pressure in the right atrium is used to assess right ventricular function and venous blood return to the heart.

a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ___derived organ and protected by a double walled memb

Description : a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ___derived organ and protected by a double walled memb

Last Answer : a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ... j. PNA____ the rate of heart beat and______

a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ___derived organ and protected by a double walled memb

Description : a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ___derived organ and protected by a double walled memb

Last Answer : a. Amphibians and reptiles have a 3 chambered heart with ___atria and ___ventricle. b. heart is ... j. PNA____ the rate of heart beat and______

A heart with a single atrium and single ventricle is a characteristic of adult: a) amphibians b) arthropods c) birds d) fish

Description : A heart with a single atrium and single ventricle is a characteristic of adult: a) amphibians b) arthropods c) birds d) fish

Last Answer : ANSWER: D -- FISH

Heart of fishes `:-`

Description : Heart of fishes `:-`

Last Answer : Heart of fishes `:-` A. Two chambered B. Venous heart C. Both (1) `&` (2) D. None of the above

Do fishes present an open or closed circulatory system? How many chambers does a fish heart have? How does blood flow throughout the fish body?

Description : Do fishes present an open or closed circulatory system? How many chambers does a fish heart have? How does blood flow throughout the fish body?

Last Answer : As in every vertebrate the circulatory system of fishes is closed, i.e., blood flows only within blood vessels. The fish heart has only two consecutive chambers: a thin-walled atrium and a ... the venous blood towards the gills to be again oxygenated. Fish Facts - Image Diversity: fish heart

Among the following edible fishes, which one is a marine fish having rich source of omega -3 fatty acids ?

Description : Among the following edible fishes, which one is a marine fish having rich source of omega -3 fatty acids ?

Last Answer : Among the following edible fishes, which one is a marine fish having rich source of omega -3 fatty acids ? A. Mrigala B. Mackerel C. Mystus D. Mangur

Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids? (a) Mystus (b) Mangur (c) Mrigala (d) Mackerel

Description : Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids? (a) Mystus (b) Mangur (c) Mrigala (d) Mackerel

Last Answer : d) Mackerel

Choose the correct statement. (a) All mammals are viviparous. (b) All cyclostomes do not possess jaws and paired fins. (c) All reptiles have a three-chambered heart. (d) All pisces have gills covered by an operculum

Description : Choose the correct statement. (a) All mammals are viviparous. (b) All cyclostomes do not possess jaws and paired fins. (c) All reptiles have a three-chambered heart. (d) All pisces have gills covered by an operculum

Last Answer : (b) All cyclostomes do not possess jaws and paired fins.

Among mammals, the efficiency of ventilation of lungs as compared to reptiles and birds is better developed by the presence of

Description : Among mammals, the efficiency of ventilation of lungs as compared to reptiles and birds is better developed by the presence of

Last Answer : Among mammals, the efficiency of ventilation of lungs as compared to reptiles and birds is better ... Only ribs C. Only costal muscles D. Diaphragm

Which among these is the CORRECT combination of aquatic mammals? 

Description : Which among these is the CORRECT combination of aquatic mammals? 

Last Answer : Which among these is the CORRECT combination of aquatic mammals? (a) Seals, Dolphins, Sharks (b) ... , Dolphins, Seals (d) Trygon, Whales, Seals

Among the following sets of salient features, which set does not exclusively characterize mammals? (1) Presence of sweat, glands, hairs on skin and diphyoclonts (2) Presence of mammary glands, sweat glands and diaphragm (3) Presence of mammary' glands, sweat glands, and diaphragm (4) Presence of mammary glands, hairs on skin and diaphragm.

Description : Among the following sets of salient features, which set does not exclusively characterize mammals? (1) Presence of sweat, glands, hairs on skin and diphyoclonts (2) Presence of mammary glands, sweat ... glands, sweat glands, and diaphragm (4) Presence of mammary glands, hairs on skin and diaphragm.

Last Answer : (3) Presence of mammary' glands, sweat glands, and diaphragm Explanation: Ayes are also worm blooded and their heart is four-chambered. Crocodiles (Reptilia) also have fourchambered heart.

.Which of the following is common among mammals? (a) They undergo no moulting. (b) They have seven cervical vertebrae.(c) They are carnivores. (d) They have ventral nerve cord.

Description : .Which of the following is common among mammals? (a) They undergo no moulting. (b) They have seven cervical vertebrae. (c) They are carnivores. (d) They have ventral nerve cord.

Last Answer : (a) They undergo no moulting.

Which among these is the correct combination of aquatic mammals? (a) Dolphins, Seals, Trygon (b) Whales, Dolphins, Seals (c) Trygon, Whales, Seals (d) Seals, Dolphins, Sharks

Description : Which among these is the correct combination of aquatic mammals? (a) Dolphins, Seals, Trygon (b) Whales, Dolphins, Seals (c) Trygon, Whales, Seals (d) Seals, Dolphins, Sharks

Last Answer : (b) Whales, Dolphins, Seal

Which among these is the correct combination of aquatic mammals ? (1) Dolphins, Seals, Trygon (2) Whales, Dolphins, Seals (3) Trygon, Whales, Seals (4) Seals, Dolphins, Sharks

Description : Which among these is the correct combination of aquatic mammals ? (1) Dolphins, Seals, Trygon (2) Whales, Dolphins, Seals (3) Trygon, Whales, Seals (4) Seals, Dolphins, Sharks

Last Answer : (2) Whales, Dolphins, Seals

Among the following sets of salient features, which set does not exclusively characterize mammals? (1) Presence of sweat glands, hairs on skin and diphyodonts (2) Presence of mammary glands, sweat glands and diaphragm (3) Presence of mammary glands, sweat glands and diaphragm (4) Presence of mammary glands, hairs on skin and diaphragm.

Description : Among the following sets of salient features, which set does not exclusively characterize mammals? (1) Presence of sweat glands, hairs on skin and diphyodonts (2) Presence of mammary glands, sweat ... glands, sweat glands and diaphragm (4) Presence of mammary glands, hairs on skin and diaphragm.

Last Answer :  Presence of mammary glands, sweat glands and diaphragm

What is the function of venous valves? -Biology

Description : What is the function of venous valves? -Biology

Last Answer : answer:

What drugs for venous insufficiency?

Description : What drugs are used for this? My legs hurt terribly and my blood supply is poor. Does anyone have it?

Last Answer : I take Detralex. But he wants to undergo an examination. Detralex is on prescription.