Most fish do not sink in water because of the presence of (1) air sinuses (2) buoyant scales on the body (3) swim bladder (4) swimmerets

Most fish do not sink in water because of the presence of (1) air sinuses (2) buoyant scales on the body (3) swim bladder (4) swimmerets
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swim bladder
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Most fish do not sink in water because of the presence of: swim bladder; air bladder; air sacs; air in spongy bones?

Description : Most fish do not sink in water because of the presence of: swim bladder; air bladder; air sacs; air in spongy bones?

Last Answer : Iand II are correct

The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into a common cloaca (b) fresh water animals with bony endoskeleton, air- bladder to regulate buoyancy (c) marine animals with cartilaginous endos- keleton, body covered with placoid scales (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Description : The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into ... dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Last Answer : (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.

The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into a common cloaca (b) fresh water animals with bony endoskeleton, air- bladder to regulate buoyancy (c) marine animals with cartilaginous endos- keleton, body covered with placoid scales (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Description : The characteristics of Class Reptilia are (a) body covered with moist skin which is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into ... dry and cornified skin, scales over the body are epidermal, they do not have external ears.

Last Answer : (d) body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.

In which one of the following is swim bladder absent? (1) Cutdefish (2) Bony fish (3) Cartilaginous fish (4) Silverfish

Description : In which one of the following is swim bladder absent? (1) Cutdefish (2) Bony fish (3) Cartilaginous fish (4) Silverfish

Last Answer : (3) Cartilaginous fish Explanation: The swim bladder is an internal gas-filled organ that contributes to the ability of a fish to control its buoyancy, and thus to stay at the current ... years ago and lack both lungs and swim bladders, suggesting that these structures evolved after that split.

In which one of the following is swim bladder absent ? (1) Cuttlefish (2) Bony fish (3) Cartilaginous fish (4) Silverfish

Description : In which one of the following is swim bladder absent ? (1) Cuttlefish (2) Bony fish (3) Cartilaginous fish (4) Silverfish

Last Answer : Cartilaginous fish

The Council of Ministers and the Prime Minister sink and swim together. -SST 10th

Description : The Council of Ministers and the Prime Minister sink and swim together. -SST 10th

Last Answer : The Council of Ministers and the Prime Minister sink and swim together as they are collectively responsible to the Lok Sabha. If a No-Confidence Motion is passed, the whole Council of Ministers has to resign or if the Prime Minister resigns, the Council of Ministers dissolved.

How does the swim bladder of fishes work allowing fishes to control their depth under water?

Description : How does the swim bladder of fishes work allowing fishes to control their depth under water?

Last Answer : From Hydrostatics it is known that an object does not sink if its density is equal or less than the density of the fluid in which it is immersed. When the swim bladder is filled by gas it ... and when it is emptied this density is increased. So this mechanism controls the fish depth under water.

If an air parcel is warmer than the air at the specified altitude then the parcel will continue to rise because warmer air is less dense and therefore buoyant. This condition best describes what?

Description : If an air parcel is warmer than the air at the specified altitude then the parcel will continue to rise because warmer air is less dense and therefore buoyant. This condition best describes what?

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A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with altitude (d) The buoyant force exerted by the air on the balloon is greater than the weight of the balloon

Description : A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with ... The buoyant force exerted by the air on the balloon is greater than the weight of the balloon

Last Answer : Ans:(d)

How important is the presence of air bladder in Pisces? -Biology

Description : How important is the presence of air bladder in Pisces? -Biology

Last Answer : answer:

What are some good ways to clear out my sinuses when they're stuffed because of allegies?

Description : What are some good ways to clear out my sinuses when they're stuffed because of allegies?

Last Answer : The spiciest food you can handle. And swimming also seems to work for me at times.

Air bladder in fish acts as : (1) Accessory respiratory organ (2) Hydrostatic organ (3) Both accessory respiratory organ and hydrostatic organ (4) Primary respiratory organ

Description : Air bladder in fish acts as : (1) Accessory respiratory organ (2) Hydrostatic organ (3) Both accessory respiratory organ and hydrostatic organ (4) Primary respiratory organ 

Last Answer : Hydrostatic organ

Assertion` :` In open circulatory system blood is pumped by heart passes throgh large vessels into open spaces or body cavities called sinuses. Reason

Description : Assertion` :` In open circulatory system blood is pumped by heart passes throgh large vessels into open spaces or body cavities called sinuses. Reason

Last Answer : Assertion` :` In open circulatory system blood is pumped by heart passes throgh large vessels into open ... D. If both Assertion & Reason are false.

During a slow decompression, passengers will occur: a. The cabin temperature will fall as pressure reduces b. Body cavities (sinuses, ears, etc.) will become pressurised and may require assistance in venting c. As soon as the pressure falls, the oxygen drop-out system will operate d. No contra effects, as slow decompression has no effect on the human body

Description : During a slow decompression, passengers will occur: a. The cabin temperature will fall as pressure reduces b. Body cavities (sinuses, ears, etc.) will become pressurised and may require assistance in ... will operate d. No contra effects, as slow decompression has no effect on the human body

Last Answer : b. Body cavities (sinuses, ears, etc.) will become pressurised and may require assistance in venting

Hello, does the gas bladder in fish also serve to keep the body in balance in addition to buoyancy? Please, give me an advice.

Description : Hello, does the gas bladder in fish also serve to keep the body in balance in addition to buoyancy? Please, give me an advice.

Last Answer : I think so.

Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces(B) A hydrometer used for the determination of specific gravities of liquidsworks on the principle of buoyant forces(C) In case of unsteady fluid flow, the velocity at any given point does notchange with time(D) Turbulent fluid flow is characterised by the rapid fluctuation ofinstantaneous pressure & velocity at a poin

Description : Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces (B) A hydrometer used for the determination of ... Turbulent fluid flow is characterised by the rapid fluctuation of instantaneous pressure & velocity at a poin

Last Answer : (C) In case of unsteady fluid flow, the velocity at any given point does not change with time

Buoyant force (A) For non-symmetrical bodies is not vertical (B) Depends on the depth of the submergence of the floating body (C) Depends on the weight of the floating body (D) None of these

Description : Buoyant force (A) For non-symmetrical bodies is not vertical (B) Depends on the depth of the submergence of the floating body (C) Depends on the weight of the floating body (D) None of these

Last Answer : (C) Depends on the weight of the floating body

The line of action of the buoyant force passes through the centre of gravity of the (A) Submerged body (B) Displaced volume of the fluid (C) Volume of fluid vertically above the body (D) Horizontal projection of the body

Description : The line of action of the buoyant force passes through the centre of gravity of the (A) Submerged body (B) Displaced volume of the fluid (C) Volume of fluid vertically above the body (D) Horizontal projection of the body

Last Answer : (B) Displaced volume of the fluid

The line of action of the buoyant force acts through the (A) Centroid of the displaced volume of fluid (B) Centre of gravity of a submerged body (C) Centroid of the volume of any floating body (D) None of these

Description : The line of action of the buoyant force acts through the (A) Centroid of the displaced volume of fluid (B) Centre of gravity of a submerged body (C) Centroid of the volume of any floating body (D) None of these

Last Answer : (A) Centroid of the displaced volume of fluid

The buoyant force acting on a floating body is dependent on the (A) Viscosity of the liquid (B) Weight of the liquid displaced (C) Depth of immersion of the body (D) Surface tension of the liquid

Description : The buoyant force acting on a floating body is dependent on the (A) Viscosity of the liquid (B) Weight of the liquid displaced (C) Depth of immersion of the body (D) Surface tension of the liquid

Last Answer : (B) Weight of the liquid displaced

The time of oscillation of a floating body is (A) Longer, if Metacentric height is increased (B) Independent of the Metacentric height (C) Dependent on the buoyant forces only (D) None of these

Description : The time of oscillation of a floating body is (A) Longer, if Metacentric height is increased (B) Independent of the Metacentric height (C) Dependent on the buoyant forces only (D) None of these

Last Answer : (D) None of these

The line of action of the buoyant force acts through the (A) Centroid of the volume of fluid vertically above the body (B) Centre of the volume of floating body (C) Center of gravity of any submerged body (D) Centroid of the displaced volume of fluid

Description : The line of action of the buoyant force acts through the (A) Centroid of the volume of fluid vertically above the body (B) Centre of the volume of floating body (C) Center of gravity of any submerged body (D) Centroid of the displaced volume of fluid

Last Answer : Answer: Option D

Buoyant force is (A) Resultant force acting on a floating body (B) Equal to the volume of liquid displaced (C) Force necessary to keep a body in equilibrium (D) The resultant force on a body due to the fluid surrounding it

Description : Buoyant force is (A) Resultant force acting on a floating body (B) Equal to the volume of liquid displaced (C) Force necessary to keep a body in equilibrium (D) The resultant force on a body due to the fluid surrounding it

Last Answer : Answer: Option D

The line of action of the buoyant force acts through the Centroid of the (A) Submerged body (B) Volume of the floating body (C) Volume of the fluid vertically above the body (D) Displaced volume of the fluid

Description : The line of action of the buoyant force acts through the Centroid of the (A) Submerged body (B) Volume of the floating body (C) Volume of the fluid vertically above the body (D) Displaced volume of the fluid

Last Answer : Answer: Option D

Metacentre is the point of intersection of (A) Vertical upward force through e.g. of body and center line of body (B) Buoyant force and the center line of body (C) Midpoint between e.g. and center of buoyancy (D) All of the above

Description : Metacentre is the point of intersection of (A) Vertical upward force through e.g. of body and center line of body (B) Buoyant force and the center line of body (C) Midpoint between e.g. and center of buoyancy (D) All of the above

Last Answer : Answer: Option B

Buoyant force is (A) The resultant force acting on a floating body (B) The resultant force on a body due to the fluid surrounding it (C) Equal to the volume of liquid displaced (D) The force necessary to maintain equilibrium of a submerged body

Description : Buoyant force is (A) The resultant force acting on a floating body (B) The resultant force on a body due to the fluid surrounding it (C) Equal to the volume of liquid displaced (D) The force necessary to maintain equilibrium of a submerged body

Last Answer : Answer: Option B

What kind of scales does hammer fish have ?

Description : What kind of scales does hammer fish have ?

Last Answer : Hammer fish has placoid type scales on its body.

What kind of scales does Rui fish have ?

Description : What kind of scales does Rui fish have ?

Last Answer : Rui fish has cycloid tied scales on its body.

How does scales help a fish to survive?

Description : How does scales help a fish to survive?

Last Answer : Scales on a fish help it breathe

Which of the following is primarily composed of calcium carbonate? (1) Fish scales (2) Shark teeth (3) Oyster Shes (4) Whale bones

Description : Which of the following is primarily composed of calcium carbonate? (1) Fish scales (2) Shark teeth (3) Oyster Shes (4) Whale bones

Last Answer : (3) Oyster Shes Explanation: There is a high content of calcium carbonate in mussel andoyster shells, which can be used in the formulation of medicine, in construction or as filler in polymer materials.

Which of the following is primarily composed of calcium carbonate? w) Fish scales x) Shark teeth y) Oyster Shells z) Whale bones

Description : Which of the following is primarily composed of calcium carbonate? w) Fish scales x) Shark teeth y) Oyster Shells z) Whale bones

Last Answer : ANSWER: Y -- OYSTER SHELLS

Why would putting fish into a sink hole full of water cause the city to finally respond, after "years" of ignoring the problem?

Description : Why would putting fish into a sink hole full of water cause the city to finally respond, after "years" of ignoring the problem?

Last Answer : You know what was annoying about that article? While I was reading it, a video commercial started playing automatically.

Which of the following represents the correct combination without any exception ? Characteristics Class (a) Sucking and circular mouth; jaws absent, integument without scales; paired appendages. Cyclostomata (b) Body covered with feathers; skin moist and glandular, fore- limbs form wings; (c) Mammary gland; hair on body; pinnae; two pairs of limbs. Mammalia (d) Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. Chondrichthyeslungs with air sacs. Aves

Description : Which of the following represents the correct combination without any exception ? Characteristics Class (a) Sucking and circular mouth; jaws absent, integument without scales; paired ... Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. Chondrichthyes

Last Answer : (c) Mammary gland; hair on body; pinnae; two pairs of limbs. Mammalia

What ladders do hydropower plants install to help the fish swim upstream to reproduce?

Description : What ladders do hydropower plants install to help the fish swim upstream to reproduce?

Last Answer : Because gowrj rowg

What ladders do hydropower plants install to help the fish swim upstream to reproduce?

Description : What ladders do hydropower plants install to help the fish swim upstream to reproduce?

Last Answer : Because gowrj rowg

Find out which one in the given options has the same relationship with the third object as the first and second are related: Swim is to Fish as Walk is to _________. A. Man B. Bird C. Chair D. Legs

Description : Find out which one in the given options has the same relationship with the third object as the first and second are related: Swim is to Fish as Walk is to _________. A. Man B. Bird C. Chair D. Legs

Last Answer : ANSWER: A

What is it about Chinese "Hot Mustard" that gives you that "gasolene vapor" effect that makes your eyes water and sinuses clear up?

Description : What is it about Chinese "Hot Mustard" that gives you that "gasolene vapor" effect that makes your eyes water and sinuses clear up?

Last Answer : answer:It’s a horseradish based heat (as opposed to capsaicin). It’s what gives wasabi it’s kick. (That rush makes my scalp crawl.) http://en.wikipedia.org/wiki/Wasabi

Presence of stones in gall bladder cause (a) Failure of kidney (b) Dysentry (c) Obstructive jaundice (d) Anaemia

Description : Presence of stones in gall bladder cause (a) Failure of kidney (b) Dysentry (c) Obstructive jaundice (d) Anaemia

Last Answer : (c) Obstructive jaundice

Can you feed a 10 month old baby until he pukes in order to clear his sinuses? [Easy there! Details included]?

Description : Can you feed a 10 month old baby until he pukes in order to clear his sinuses? [Easy there! Details included]?

Last Answer : answer:I am not remotely a doctor That sounds like a good way to get a sinus infection – though perhaps the whole problem is that he has a sinus infection. Either way, yuck.

How did flu germs evolve to affect our sinuses?

Description : How did flu germs evolve to affect our sinuses?

Last Answer : It got created the same way as everything else, I don't know. It was always able to infect our bodies, and it was always apadting. People have helped it to adapt too, by using antibiotics, the weaker viruses ... created, then I guess God, so that it would do the same to us, weed out the weaker ones.

Truth or myth, if you blow your nose too hard it could affect your sinuses (leading to a sinus infection)

Description : Truth or myth, if you blow your nose too hard it could affect your sinuses (leading to a sinus infection)

Last Answer : It’s not really about how hard you blow, but what technique you use. the “valsalva” maneuver can inject mucus into your sinuses. It’s best to blow one nostril at a time.

What is the best thing to take (do) for head cold (sinuses)?

Description : What is the best thing to take (do) for head cold (sinuses)?

Last Answer : answer:zicam is great for reducing days off of colds. claritin is good. there is another sinus med I think cant of the name of.

Can using earplugs at night clog my sinuses?

Description : Can using earplugs at night clog my sinuses?

Last Answer : I don’t think so but I’m not a doctor. I’ve used earplugs when I had noisy neighbors and I haven’t found that to be the case with me. When I would catch a cold however I would feel like my ears are clogged but not the other way around.

Do you have problems with your sinuses due to the use of a CPAP machine for sleep apnea?

Description : Do you have problems with your sinuses due to the use of a CPAP machine for sleep apnea?

Last Answer : I had the humidifier connected to the machine and that eliminated the sinus trouble. Since I live alone now, I don’t use the machine anymore. +GQ

Why are my sinuses worse outside of LA?

Description : Why are my sinuses worse outside of LA?

Last Answer : It could be allergens that your body is not acustom to in the areas you are traveling. For example: Certain tree pollens that may be in the areas you travel that are not in LA.

How do you equalize your sinuses after flying?

Description : How do you equalize your sinuses after flying?

Last Answer : I’ve always heard pilots say that they hold their noses, close their mouths, and try to blow air out their ears. Rather a lot like blowing your nose but with every escape route closed off. You got to put some effort into it but it usually works for me.

Are steam showers good for your sinuses?

Description : Are steam showers good for your sinuses?

Last Answer : Yes, steam showers are good for sinuses.

How painful is it to get a nose ring and will it permanently damage my sinuses?

Description : How painful is it to get a nose ring and will it permanently damage my sinuses?

Last Answer : A nose ring should have no effect on your sinuses,the pain is equal to that of having your ears pierced.

The following are true about the dural venous sinuses: a. they have no valve b. the cavernous sinus is closely related to the pituitary gland c. the cavernous sinus has the first two divisions of the trigeminal nerve on its lateral wall d. all above

Description : The following are true about the dural venous sinuses: a. they have no valve b. the cavernous sinus is closely related to the pituitary gland c. the cavernous sinus has the first two divisions of the trigeminal nerve on its lateral wall d. all above

Last Answer : all above

The following are true about the dural venous sinuses: a. they have no valve b. the cavernous sinus is closely related to the pituitary gland c. the cavernous sinus has the first two divisions of the trigeminal nerve on its lateral wall d. all above

Description : The following are true about the dural venous sinuses: a. they have no valve b. the cavernous sinus is closely related to the pituitary gland c. the cavernous sinus has the first two divisions of the trigeminal nerve on its lateral wall d. all above

Last Answer : all above