What vertebrates have air sacs attached to their lungs that make lungs more efficient?

What vertebrates have air sacs attached to their lungs that make lungs more efficient?
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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.

Why do brads not have respiratory trouble at the time of flying at high all? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less

Description : Why do brads not have respiratory trouble at the time of flying at high all? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less

Last Answer : (3) They have extra air sacs Explanation: The avian respiratory system delivers oxygen from the air to the tissues and also removes carbon dioxide. In addition, the respiratory system plays an ... play an important role in respiration (but are not directly involved in the exchange of gases).

Why do brids not have respiratory trouble at the time of flying at high altitude ? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less oxygen

Description : Why do brids not have respiratory trouble at the time of flying at high altitude ? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less oxygen

Last Answer : They have extra air sacs

What is the term for the tiny air sacs in the lungs?

Description : What is the term for the tiny air sacs in the lungs?

Last Answer : Alveoli

What is the number of air sacs in the lungs ?

Last Answer : The number of air sacs in the lungs is 18 crores

Lining of blood vessel and air sacs of lungs are made up of : -

Description : Lining of blood vessel and air sacs of lungs are made up of : -

Last Answer : Lining of blood vessel and air sacs of lungs are made up of : - A. Squamous ... Epithelium C. Cuboidal Epithelium D. Pseudo stratified Epithelium.

What are The air sacs in your lungs that create a large surface area for diffusion called?

Description : What are The air sacs in your lungs that create a large surface area for diffusion called?

Last Answer : Need answer

Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of (a) inspiratory reserve volume (b) tidal volume (c) expiratory reserve volume (d) residual volume.

Description : Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of (a) inspiratory reserve volume (b) tidal volume (c) expiratory reserve volume (d) residual volume.

Last Answer : (d) residual volume.

Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of: (1) Inspiratory Reserve Volume (2) Tidal Volume (3) Expiratory Reserve Volume (4) Residual Volume

Description : Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of: (1) Inspiratory Reserve Volume (2) Tidal Volume (3) Expiratory Reserve Volume (4) Residual Volume

Last Answer : (4) Residual Volume

The majority of carbon dioxide produced by our body cells is transported to the lungs as (a) attached to haemoglobin (b) dissolved in the blood (c) as bicarbonates (d) as carbonates.

Description : The majority of carbon dioxide produced by our body cells is transported to the lungs as (a) attached to haemoglobin (b) dissolved in the blood (c) as bicarbonates (d) as carbonates.

Last Answer : (c) as bicarbonates

The presence of air sacs is a feature of which class ?

Description : The presence of air sacs is a feature of which class ?

Last Answer : The presence of air sacs is a feature of the Aves class.

Air sacs are found only inn

Description : Air sacs are found only inn

Last Answer : Air sacs are found only inn A. Aquatic birds B. Ground birds C. All birds D. No bird

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

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

List three characteristics of lungs which make it an efficient respiratory surface. -Biology

Description : List three characteristics of lungs which make it an efficient respiratory surface. -Biology

Last Answer : These features which particularly make our lungs efficient for gas exchange. 1.Thin: the air sac walls are very thin so that gases can quickly diffuse through them. Oxygen is absorbed in to the blood ... network so that large volumes of gases can be exchanged. More the flow of blood more exchange.

What is with dogs and emptying their anal sacs?

Description : What is with dogs and emptying their anal sacs?

Last Answer : Sometimes it can be dietary, in that too soft a stool will not exert enough pressure to expel the sacs. You can do it yourself, but it requires training, and it is also quite noxious. I suggest you speak to your vet.

Why are dental sacs made?

Description : Improper tooth cleaning?

Last Answer : Improper dental care and usually causes untreated or late-treated caries

The structures that are formed by stacking of organized flattered membrances sacs in the chloroplasts are

Description : The structures that are formed by stacking of organized flattered membrances sacs in the chloroplasts are

Last Answer : The structures that are formed by stacking of organized flattered membrances sacs in the chloroplasts are A ... B. Cristae C. Grana D. Stroma lamellae

Scrotal sacs of man and rabbit are connected with the abdominal cavity by

Description : Scrotal sacs of man and rabbit are connected with the abdominal cavity by

Last Answer : Scrotal sacs of man and rabbit are connected with the abdominal cavity by A. Inguinal canal B. Haversian canal C. Vagina cavity D. Spermatic canal.

In mammals, the testes occur in scrotal sacs outside the abdomen because of the

Description : In mammals, the testes occur in scrotal sacs outside the abdomen because of the

Last Answer : In mammals, the testes occur in scrotal sacs outside the abdomen because of the A. ... deferens D. Requirement of low temperature for spermatogenesis

Scrotal sacs of man is connected with the abdominal cavity by-

Description : Scrotal sacs of man is connected with the abdominal cavity by-

Last Answer : Scrotal sacs of man is connected with the abdominal cavity by- A. Inguinal canal B. Haversian canal C. Vaginacavity D. Spermatic canal

The structures that are formed by stacking of organized flattered membrances sacs in the chloroplasts are

Description : The structures that are formed by stacking of organized flattered membrances sacs in the chloroplasts are

Last Answer : The structures that are formed by stacking of organized flattered membrances sacs in the chloroplasts are ... B. Stroma lamellae C. Stroma D. Cristae

What Thylakoids are membrane sacs that contain?

Description : What Thylakoids are membrane sacs that contain?

Last Answer : chlorophyll

Which of the following conditions related to smoking involves damage to the alveoli sacs? A. Lung Cancer B. Atherosclerosis C. Emphysema (Answer) D. Asthma

Description : Which of the following conditions related to smoking involves damage to the alveoli sacs? A. Lung Cancer B. Atherosclerosis C. Emphysema (Answer) D. Asthma

Last Answer : C. Emphysema (Answer)

.In a type of apomixis known as adventive embryony, embryos develop directly from the (a) nucellus or integuments (b) zygote (c) synergids or antipodals in an embryo sac (d) accessory embryo sacs in the ovule

Description : .In a type of apomixis known as adventive embryony, embryos develop directly from the (a) nucellus or integuments (b) zygote (c) synergids or antipodals in an embryo sac (d) accessory embryo sacs in the ovule

Last Answer : (a) nucellus or integuments

Which one of the following cellular parts is correctly described? (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts (b) Centrioles - sites for active RNA synthesis (c) Ribosomes - those on chloroplasts are larger (80S) while those in the cytoplasm are smaller (70S) (d) Lysosomes - optimally active at a pH of about 8.5

Description : Which one of the following cellular parts is correctly described? (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts (b) Centrioles - sites for active RNA synthesis (c) Ribosomes - ... cytoplasm are smaller (70S) (d) Lysosomes - optimally active at a pH of about 8.5

Last Answer : (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts

The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are (a) stroma lamellae (b) stroma (c) cristae (d) grana.

Description : The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are (a) stroma lamellae (b) stroma (c) cristae (d) grana.

Last Answer : (d) grana.

Match the columns and identify the correct option. Column I Column II A. Thylakoids (i) Disc-shaped sacs in Golgi apparatus B. Cristae (ii) Condensed structure of DNA C. Cisternae (iii) Flat membranous sacs in stroma D. Chromatin (iv) Infoldings in mitochondria (a) A-(iii), B-(i), C-(iv), D-(ii) (b) A-(iii), B-(iv), C-(ii), D-(i) (c) A-(iv), B-(iii), C-(i), D-(ii) (d) A-(iii), B-(iv), C-(i), D-(ii)

Description : Match the columns and identify the correct option. Column I Column II A. Thylakoids (i) Disc-shaped sacs in Golgi apparatus B. Cristae (ii) Condensed structure of DNA C. Cisternae (iii) Flat membranous sacs in stroma D. Chromatin (iv) ... iii), C-(i), D-(ii) (d) A-(iii), B-(iv), C-(i), D-(ii)

Last Answer : (d) A-(iii), B-(iv), C-(i), D-(ii)

Each chloroplast encloses a system of flattened, membranous sacs called (A) Cristae (B) Thylakoids (C) Plastids (D) Cisternae

Description : Each chloroplast encloses a system of flattened, membranous sacs called (A) Cristae (B) Thylakoids (C) Plastids (D) Cisternae

Last Answer : (B) Thylakoids

In flowers the terminal part of a stamen, containing the pollen sacs is known as the: a) anther b) style c) filament d) pistil

Description : In flowers the terminal part of a stamen, containing the pollen sacs is known as the: a) anther b) style c) filament d) pistil

Last Answer : ANSWER: A -- Anther

The long bones are hollow and connected by air passages. They are the characteristics of (a) reptilia (b) land vertebrates (c) aves (d) mammals.

Description : The long bones are hollow and connected by air passages. They are the characteristics of (a) reptilia (b) land vertebrates (c) aves (d) mammals.

Last Answer : (c) aves

.A common characteristic of all vertebrates without exception is (a) the division of body into head, neck, trunk and tail (b) their body covered with an exoskeleton (c) the possession of two pairs of functional appendages (d) the presence of well-developed skull

Description : .A common characteristic of all vertebrates without exception is (a) the division of body into head, neck, trunk and tail (b) their body covered with an exoskeleton (c) the possession of two pairs of functional appendages (d) the presence of well-developed skull

Last Answer : (d) the presence of well-developed skull.

Persons in asbestos factories are affected by air pollution, the most affected part of their body is the (a) eye (b) throat (c) lungs (d) skin

Description : Persons in asbestos factories are affected by air pollution, the most affected part of their body is the (a) eye (b) throat (c) lungs (d) skin

Last Answer : Ans:(c)

Which statement best explains why invertebrates regenerate lost tissue more readily than most vertebrates do?

Description : Which statement best explains why invertebrates regenerate lost tissue more readily than most vertebrates do?

Last Answer : Which statement best explains why invertebrates regenerate lost tissue more readily than most ... undifferentiated cells than vertebrate animals have.

Besides vertebrates two invertebrate phyla contain species that make pulmonary respiration. Which are these phyla?

Description : Besides vertebrates two invertebrate phyla contain species that make pulmonary respiration. Which are these phyla?

Last Answer : Terrestrial molluscs and the arachnid arthropods are the invertebrates that present pulmonary-like respiration. Some terrestrial molluscs have a mantle cavity filled with air that makes contact with richly ... have book lungs (thin folds resembling leaves of a book) that make gas exchange.

The five classes of vertebrates are? -Biology

Description : The five classes of vertebrates are? -Biology

Last Answer : answer:

The five classes of vertebrates are? -Biology

Description : The five classes of vertebrates are? -Biology

Last Answer : answer:

what two groups of present-day vertebrates are the descendants of reptiles?

Description : what two groups of present-day vertebrates are the descendants of reptiles?

Last Answer : are alligator and snakes

All vertebrates belong to which state ?

Description : All vertebrates belong to which state ?

Last Answer : All vertebrates belong to the state of Animalia.

How many classes of vertebrates have been divided on the basis of structure and characteristics ?

Description : How many classes of vertebrates have been divided on the basis of structure and characteristics ?

Last Answer : Vertebrates are divided into 8 groups based on their structure and characteristics.

Animals of which subfamily are known as vertebrates ?

Description : Animals of which subfamily are known as vertebrates ?

Last Answer : Vertibrata subfamily animals are known as vertebrates.

Which episode's animals are vertebrates ?

Last Answer : The animals in the circumference are vertebrates.

How many vertebrates are there ?

Last Answer : 12 human thoracic vertebrae .

Development which freed land vertebrates from water was

Description : Development which freed land vertebrates from water was

Last Answer : Development which freed land vertebrates from water was A. Four appendages B. Lungs C. Cleidoic eggs D. Four - chambered heart

How does reptilia differ from other vertebrates ?

Description : How does reptilia differ from other vertebrates ?

Last Answer : How does reptilia differ from other vertebrates ? A. Due to epidermal scale B. Due to cleidoic eggs C. Due to tetrapod limb D. None of them

The yellow colour of urine of the vertebrates is due to

Description : The yellow colour of urine of the vertebrates is due to

Last Answer : The yellow colour of urine of the vertebrates is due to A. Lecithin B. Urochrom C. Uric acid D. Bilirubin

Which type of WBCs are most abundant in the blood of rabbit and other vertebrates?

Description : Which type of WBCs are most abundant in the blood of rabbit and other vertebrates?

Last Answer : Which type of WBCs are most abundant in the blood of rabbit and other vertebrates? A. Acidophils B. Basophils C. Lymphocytes D. Neutrophils

The renal portal system of vertebrates is significant for

Description : The renal portal system of vertebrates is significant for

Last Answer : The renal portal system of vertebrates is significant for A. Elimination of excess fats by kidneys ... the kidneys D. Draining blood from the kidney