Which of the following vertebrates lack exoskeleton ? (1) Amphibia (2) Mammalia (3) Aves (4) Chondrichthyes

Which of the following vertebrates lack exoskeleton ? (1) Amphibia (2) Mammalia (3) Aves (4) Chondrichthyes
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Chondrichthyes
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Which of the following vertebrates lack exoskeleton? (1) Amphibia (2) Mammalia (3) Avis (4) Chondrichthyes

Description : Which of the following vertebrates lack exoskeleton? (1) Amphibia (2) Mammalia (3) Avis (4) Chondrichthyes

Last Answer : (4) Chondrichthyes Explanation: An exoskeleton is the external skeletons that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. ... scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.

Distinguish between Reptilia, Amphibia and Aves.

Description : Distinguish between Reptilia, Amphibia and Aves.

Last Answer : Distinguish between Reptilia, Amphibia and Aves.

The birds belong to the following Class of the Phylum Chordata B A. Crustacea B. Aves C. Amphibia D. Annelida

Description : The birds belong to the following Class of the Phylum Chordata B A. Crustacea B. Aves C. Amphibia D. Annelida

Last Answer : Aves

The birds belong to the following Class of the Phylum Chordata B A. Crustacea B. Aves C. Amphibia D. Annelida

Description : The birds belong to the following Class of the Phylum Chordata B A. Crustacea B. Aves C. Amphibia D. Annelida

Last Answer : Aves

In which one of the following the genus name, its two characters and its class/phylum are correctly matched?(a) Ascaris (i) Body segmented Annelida (ii) Males and females distinct (b) Salamandra (i) A tympanum Amphibia represents ear (ii) Fertilization is external (c) Pteropus (i) Skin possesses Mammalia hair (ii) Oviparous (d) Aurelia (i) Cnidoblasts Coelenterata (ii) Organ level of organization

Description : In which one of the following the genus name, its two characters and its class/phylum are correctly matched? (a) Ascaris (i) Body segmented Annelida (ii) Males and females distinct (b) ... hair (ii) Oviparous (d) Aurelia (i) Cnidoblasts Coelenterata (ii) Organ level of organization

Last Answer : (a) Ascaris (i) Body segmented Annelida (ii) Males and females distinct

Identify the vertebrate group of animals characterised by crop and gizzard in its digestive system. (a) Amphibia (b) Reptilia (c) Aves (d) Osteichthyes

Description : Identify the vertebrate group of animals characterised by crop and gizzard in its digestive system. (a) Amphibia (b) Reptilia (c) Aves (d) Osteichthyes

Last Answer : (c) Aves

Identify the vertebrate group of animals characterized by crop and gizzard in its digestive sytstem. (1) Amphibia (2) Reptilia (3) Aves (4) Osteichthyes

Description : Identify the vertebrate group of animals characterized by crop and gizzard in its digestive sytstem. (1) Amphibia (2) Reptilia (3) Aves (4) Osteichthyes

Last Answer : (3) Aves

Which one of the following groups of animals is correctly matched with its characteristic feature without any exception? (a) Reptilia : possess 3-chambered heart with an incompletely divided ventricle (b) Chordata : possess a mouth with an upper and a lower jaw (c) Chondrichthyes : possess cartilaginous endo- skeleton (d) Mammalia : give birth to young ones

Description : Which one of the following groups of animals is correctly matched with its characteristic feature without any exception? (a) Reptilia : possess 3-chambered heart with an incompletely divided ... ) Chondrichthyes : possess cartilaginous endo- skeleton (d) Mammalia : give birth to young ones

Last Answer : (c) Chondrichthyes : possess cartilaginous endo- skeleton

Which one of the following groups of animals is correctly matched with its characteristic feature without any exception? (a) Reptilia : possess 3-chambered heart with an incompletely divided ventricle (b) Chordata : possess a mouth with an upper and a lower jaw (c) Chondrichthyes : possess cartilaginous endo- skeleton (d) Mammalia : give birth to young ones

Description : Which one of the following groups of animals is correctly matched with its characteristic feature without any exception? (a) Reptilia : possess 3-chambered heart with an incompletely divided ... ) Chondrichthyes : possess cartilaginous endo- skeleton (d) Mammalia : give birth to young ones

Last Answer : (c) Chondrichthyes : possess cartilaginous endo- skeleton

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

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.

Match the Colum-I with Column -II . `{:(,"Column-I",,"Column-II"),((A),"Fish",(i),"3-chambered heart "),((B),"Amphibia",(ii) ,"Incomplete double circu

Description : Match the Colum-I with Column -II . `{:(,"Column-I",,"Column-II"),((A),"Fish",(i),"3-chambered heart "),((B),"Amphibia",(ii) ,"Incomplete double circu

Last Answer : Match the Colum-I with Column -II . `{:(,"Column-I",,"Column-II"),((A),"Fish",(i),"3-chambered heart "),(( ... v),(iv) B rarr (i),(ii)C rarr (v),(vi)`

Give the characteristics of class Amphibia with one example?

Description : Give the characteristics of class Amphibia with one example? 

Last Answer : Characteristics: - i) Members of this class are called amphibians. ii) Their bodies are covered with thin and lose skin. This skin is moist and slimy. iii) Small teeth are present in upper jaw, which ... cm. viii) World largest frog was found in South Africa. Its body length is upto 30 cm. 

Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous waste they give out? Ammonotelic Ureotelic Uricotelic (a) Pigeon, Aquatic Cockroach, humans amphibia, frog lizards (b) Frog, Aquatic Cockroach, lizards amphibia, pigeon humans (c) Aquatic Frog, Pigeon, amphibia humans lizards, cockroach (d) Aquatic Cockroach, Frog, pigeon, amphibia humans lizards

Description : Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous waste they give out? Ammonotelic Ureotelic Uricotelic (a) Pigeon, Aquatic ... amphibia humans lizards, cockroach (d) Aquatic Cockroach, Frog, pigeon, amphibia humans lizards

Last Answer : (d) Aquatic Cockroach, Frog, pigeon, amphibia humans lizards

Difference between Chondrichthyes and Osteichthyes. -Biology

Description : Difference between Chondrichthyes and Osteichthyes. -Biology

Last Answer : answer:

Which chondrichthyes ?

Description : Which chondrichthyes ?

Last Answer : Saw fish chondrichthis.

Distinguish between Chondrichthyes and Osteichthyes.

Description : Distinguish between Chondrichthyes and Osteichthyes.

Last Answer : Distinguish between Chondrichthyes and Osteichthyes.

How different are fecundation in osteichthyes and in chondrichthyes?

Description : How different are fecundation in osteichthyes and in chondrichthyes?

Last Answer : In chondrichthyes fecundation is internal by means of copulation. In osteichthyes fecundation generally is external and the gametes are released in the water, where they can fecundate their counterpart and form the zygote.

How different are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need to agitate their body to swim while bony fishes do not?

Description : How different are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need to agitate their body to swim while bony fishes do not?

Last Answer : Bony fishes have a specialized organ called a gas bladder, or swim bladder, whose interior can be filled with gas liberated from gas glands. The swim bladder works as a hydrostatic organ since ... helps to reduce their body density relative to water. Fish Facts - Image Diversity: swim bladder

Which of the following characteristic features always holds true for the corresponding group of animals? (a) Possess a mouth with an Chordata upper and a lower jaw (b) 3–chambered heart with Reptilia one incompletely divided ventricle (c) Cartilaginous endoskeleton Chondrichthyes (d) Viviparous

Description : Which of the following characteristic features always holds true for the corresponding group of animals? (a) Possess a mouth with an Chordata upper and a lower jaw (b) 3- ... heart with Reptilia one incompletely divided ventricle (c) Cartilaginous endoskeleton Chondrichthyes (d) Viviparous

Last Answer : (c) Cartilaginous endoskeleton

Match the following columns and select the correct option. Column-I Column-II (A) 6-15 pairs of gill slits (i) Trygon (B) Heterocercal caudal fin (ii) Cyclostomes (C) Air bladder (iii) Chondrichthyes (D) Poison sting (iv) Osteichthyes(A) (B) (C) (D) (a) (ii) (iii) (iv) (i) (b) (iii) (iv) (i) (ii) (c) (iv) (ii) (iii) (i) (d) (i) (iv) (iii) (ii)

Description : Match the following columns and select the correct option. Column-I Column-II (A) 6-15 pairs of gill slits (i) Trygon (B) Heterocercal caudal fin (ii) Cyclostomes (C) Air bladder (iii) Chondrichthyes (D) Poison sting (iv) Osteichthyes ... (i) (ii) (c) (iv) (ii) (iii) (i) (d) (i) (iv) (iii) (ii)

Last Answer : (a) (ii) (iii) (iv) (i)

Phylum Chordata Class Chondrichthyes

Description : Phylum Chordata Class Chondrichthyes

Last Answer : HORN SHARK (Heterodontus francisci) Habitat: Rocky reefs and kelp forests from Central California to Baja California. Size: 1m (3.3 ft) Position in food web: Carnivorous: Feeds on ... fish the -banjo shark because it looks like the instrument Relatives: Sharks, skates, and rays

Similarities between Aves and Mammals. -Biology

Description : Similarities between Aves and Mammals. -Biology

Last Answer : answer:

Birds: Aves:: Monkey?

Description : Birds: Aves:: Monkey?

Last Answer : Could you please repeat the question....but make sense this time?

Which one of the following characters is not typical of the class Mammalia

Description : Which one of the following characters is not typical of the class Mammalia

Last Answer : Which one of the following characters is not typical of the class Mammalia A. Alveolar luns B. ... . Seven cerviaal vertebrae D. The codont dentition.

Which of the following is an exclusive character of Class Mammalia ?

Description : Which of the following is an exclusive character of Class Mammalia ?

Last Answer : Which of the following is an exclusive character of Class Mammalia ? A. Homoiothermy B. ... chambered heart D. Presence of a muscular diaphragm

Which characters is not same in aves and mammals

Description : Which characters is not same in aves and mammals

Last Answer : Which characters is not same in aves and mammals A. Single systemic arch B. Metanephric kidney C. Seven cerviaal vertebrae D. Homeotherms

In which of the following orders of class mammalia , the animals can fly ?

Description : In which of the following orders of class mammalia , the animals can fly ?

Last Answer : In which of the following orders of class mammalia , the animals can fly ? A. Lagomorpha B. Chiroptera C. Rodentia D. Cetacea

Which one of the following characters is not typical of the class Mammalia

Description : Which one of the following characters is not typical of the class Mammalia

Last Answer : Which one of the following characters is not typical of the class Mammalia A. Thecodont ... pairs of cranial nerves D. Seven cervical vertebrae

Name the oil gland present at the base of tail in Aves.

Description : Name the oil gland present at the base of tail in Aves.

Last Answer : Name the oil gland present at the base of tail in Aves.

Which type of circulation occurs in Aves?

Description : Which type of circulation occurs in Aves?

Last Answer : Which type of circulation occurs in Aves?

Aves and Pisces have stream-lined body. What is the significance of this type of body.

Description : Aves and Pisces have stream-lined body. What is the significance of this type of body.

Last Answer : Aves and Pisces have stream-lined body. What is the significance of this type of body.

Comment on respiration in Aves.

Description : Comment on respiration in Aves.

Last Answer : Comment on respiration in Aves.

Give examples of animals belonging to class Mammalia.

Description : Give examples of animals belonging to class Mammalia.

Last Answer : Give examples of animals belonging to class Mammalia.

Give important features of class Mammalia.

Description : Give important features of class Mammalia.

Last Answer : Give important features of class Mammalia.

Enlist the salient features of class Aves.

Description : Enlist the salient features of class Aves.

Last Answer : Enlist the salient features of class Aves.

Which is more specific animalia or mammalia?

Description : Which is more specific animalia or mammalia?

Last Answer : The answer is mammilia because animalia could be reptiles amphibians birds or fish mammilia is specific.

Aves are (a) Cold-blooded (b) Warm-blooded (c) Both (d) None of these

Description : Aves are (a) Cold-blooded (b) Warm-blooded (c) Both (d) None of these

Last Answer : Ans:(b)

Which one of the following set belongs to the class Mammalia? (1) Lion, Hippopotamus, Penguin, Bat (2) Lion, Bat, Whale, Ostrich (3) Hippopotamus, Penguin, Whale, Kangaroo (4) Whale, Bat, Kangaroo, Hippopotamus

Description : Which one of the following set belongs to the class Mammalia? (1) Lion, Hippopotamus, Penguin, Bat (2) Lion, Bat, Whale, Ostrich (3) Hippopotamus, Penguin, Whale, Kangaroo (4) Whale, Bat, Kangaroo, Hippopotamus

Last Answer : (4) Whale, Bat, Kangaroo, Hippopotamus Explanation: Mammals are members of class Mammalia, air-breathing vertebrate animals characterized by the possession of endothermy, hair, three middle ear bones ... sheep, goats belong to Order Artiodactyla; Order Cetacea: whales, dolphins and porpoises; etc.

What is the name of an extinct bird which shares the characters of both reptiles and aves?

Description : What is the name of an extinct bird  which shares the characters of both reptiles  and aves?

Last Answer : Archaeopteryx

The forelimbs of class aves are modified into

Description : The forelimbs of class aves are modified into

Last Answer : wings.

Mention the characteristics of class mammalia.

Description : Mention the characteristics of class mammalia.

Last Answer : a) Mammals are the most advanced group of vertebrates. b) They occur in a variety of habitats - terrestrial, aquatic and aerial. c) The body is divided into head, trunk and tail. Trunk is ... females secrete milk to nourish the young ones. Ex: Platypus, Echidna, Kangaroo, Bat, Whale, Dolphins etc

Mention the features of class aves.

Description : Mention the features of class aves.

Last Answer : a) Members of class aves are called birds. b) They are mostly aerial, capable of flying. Some are aquatic. c) They have a streamlined (boat shaped) body. The body can be divided into head, trunk ... . h) Nervous system is well developed with a brain, a spinal cord and 12 pair of cranial nerves.

Write down the characteristics of Mammalia? What are its groups?

Description : Write down the characteristics of Mammalia? What are its groups?

Last Answer : Characteristics: - i) Highly advanced animals are included in this group. ii) Man is also a mammal. iii) Their body is covered with hairs. But in few some areas are restricted by hairs. ... of mammals. i) Egg Laying mammals. ii) Pouched mammals. iii) Placental mammals. 

Write down the characteristics of class Aves? Also give the different groups?

Description : Write down the characteristics of class Aves? Also give the different groups? 

Last Answer : Characteristics: - i) Members of these groups are called birds. ii) The organisms in this group are very beautiful and have melodious voices. iii) There are more than 9000 species are present of ... kite etc. Humming bird is smallest in the world. Its size is two inches long. 

What is true for mammalia? (a) Platypus is oviparous. (b) Bats have feather. (c) Elephant is ovoviviparous. (d) Diaphragm is absent in them

Description : What is true for mammalia? (a) Platypus is oviparous. (b) Bats have feather. (c) Elephant is ovoviviparous. (d) Diaphragm is absent in them

Last Answer : (a) Platypus is oviparous.

Which one of the following characters is not typical of the Class Mammalia? (a) Thecodont dentition (b) Alveolar lungs (c) Ten pairs of cranial nerves (d) Seven cervical vertebrae

Description : Which one of the following characters is not typical of the Class Mammalia? (a) Thecodont dentition (b) Alveolar lungs (c) Ten pairs of cranial nerves (d) Seven cervical vertebrae

Last Answer : (c) Ten pairs of cranial nerves

Which one of the following animals is correctly matched with its one characteristic and the taxon? Animal Characteristic Taxon (a) Millipede Ventral nerve Arachnida cord (b) Sea anemone Triploblastic Cnidaria (c) Silver fish Pectoral and Chordata pelvic fins (d) Duckbilled Oviparous Mammalia platypus

Description : Which one of the following animals is correctly matched with its one characteristic and the taxon? Animal Characteristic Taxon (a) Millipede Ventral nerve Arachnida cord (b) Sea anemone ... Cnidaria (c) Silver fish Pectoral and Chordata pelvic fins (d) Duckbilled Oviparous Mammalia platypus

Last Answer : (d) Duckbilled Oviparous Mammalia platypus

Which one of the following animals is correctly matched with its one characteristic and the taxon? Animal Characteristic Taxon (a) Millipede Ventral nerve Arachnida cord (b) Sea anemone Triploblastic Cnidaria (c) Silver fish Pectoral and Chordata pelvic fins (d) Duckbilled Oviparous Mammalia platypus

Description : Which one of the following animals is correctly matched with its one characteristic and the taxon? Animal Characteristic Taxon (a) Millipede Ventral nerve Arachnida cord (b) Sea anemone ... Cnidaria (c) Silver fish Pectoral and Chordata pelvic fins (d) Duckbilled Oviparous Mammalia platypus

Last Answer : (d) Duckbilled Oviparous Mammalia platypus