Mention the characteristics of class Reptilia.

Mention the characteristics of class Reptilia.
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1 Answer

Answer :

a) Reptiles are the first true terrestrial vertebrates.

b) Most of them are land forms and some are adapted for life in water.

c) The body is elongated, divided into head, trunk and tail.

d) They have an exoskeleton in the form of epidermal scales.

e) Locomotion is by fore and hind limbs. They are pentadactyl animals.

f) Respiration is by lungs.

g) They are cold blooded animals. Heart is three chambered. In crocodiles ventricle is

incompletely divided into two chambers.

h) Nervous system consists of a brain, a spinal cord and 12 pairs of cranial nerves.

i) They are oviparous animals. Fertilization is internal but development is external.

Ex: Turtles, tortoise, lizards, snakes
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Related questions

Write down the characteristics of class Reptilia? Also give example?

Description : Write down the characteristics of class Reptilia? Also give example? 

Last Answer : Characteristics: - i) Members of this groups are called reptiles. ii) Most of animals of this group are terrestrial. A few live in water. iii) They are also called crawlers. iv) ... garter and copper head keep their shelled eggs in their body, which hatch inside the body. 

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.

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

Write the distinguishing features of class Reptilia.

Description : Write the distinguishing features of class Reptilia.

Last Answer : Write the distinguishing features of class Reptilia.

Class Reptilia identity card. How are they characterized according to examples of representing beings, basic morphology, skin, respiration, circulation, nitrogen waste, thermal control and types of reproduction?

Description : Class Reptilia identity card. How are they characterized according to examples of representing beings, basic morphology, skin, respiration, circulation, nitrogen waste, thermal control and types of reproduction?

Last Answer : Examples of representing beings: snakes, turtles, crocodiles, lizards, dinosaurs (extinct). Basic morphology: tetrapods, some with carapaces (like turtles). Skin: impermeable keratinized, corneous ... sexual, internal fecundation, shelled eggs with extraembryonic membranes. Class Aves - Q&A Review

What is an example of a hypothesis which may explain why there is not a big representation of the class Reptilia found in polar regions?

Description : What is an example of a hypothesis which may explain why there is not a big representation of the class Reptilia found in polar regions?

Last Answer : Beings of the class Reptilia are abundant and more diverse in hot climate regions and they are rare in intensely cold regions like close to the earth poles. This is explained because these animals are ... active during the day, a period when they can use the sun heat to warm their bodies.

Concerning the maintenance of body temperature how do beings of the class Reptilia classify?

Description : Concerning the maintenance of body temperature how do beings of the class Reptilia classify?

Last Answer : Like fishes and amphibians, beings of the class Reptilia are heterothermic animals (also known as poikilothermic, or ectothermic), i.e., they are not able to control by themselves their body temperature and thus they depend on external warm sources (mainly the sun).

Compared to amphibians what are the two reproductive novelties of beings of the class Reptilia for the survival in dry environments?

Description : Compared to amphibians what are the two reproductive novelties of beings of the class Reptilia for the survival in dry environments?

Last Answer : Compared to amphibians the two main reproductive innovations of beings of the class Reptilia for the terrestrial habitat are internal fecundation and shelled eggs. Image Diversity: reptilian egg

Do beings of the class Reptilia have direct or indirect development?

Description : Do beings of the class Reptilia have direct or indirect development?

Last Answer : In beings of the class Reptilia the embryonic development is direct. So there is no larval stage.

How is reproduction done in beings of the class Reptilia?

Description : How is reproduction done in beings of the class Reptilia?

Last Answer : These beings reproduce sexually through internal fecundation by means of copulation between male and female individuals. They lay eggs with shell and extraembryonic membranes. The embryo thus develops ... there are also ovoviviparous reptiles that retain the egg within the body until hatching).

Which is the type of nitrogen waste eliminated by beings of the class Reptilia?

Description : Which is the type of nitrogen waste eliminated by beings of the class Reptilia?

Last Answer : These beings excrete mainly uric acid. This substance is less toxic than ammonia and it can be kept stored for a longer time inside the individual, including within eggs. In addition uric acid is practically insoluble and it depends less on water to be eliminated. Image Diversity: uric acid molecule

Do beings of the class Reptilia perform gas exchange in the same way amphibians do?

Description : Do beings of the class Reptilia perform gas exchange in the same way amphibians do?

Last Answer : These beings do not have permeable skin so they do not make cutaneous respiration like amphibians do. Just like in birds and in mammals, their respiration is pulmonary.

Compared to amphibians what is an example of evolutionary novelty present in beings of the class Reptilia against the loss of water through the skin?

Description : Compared to amphibians what is an example of evolutionary novelty present in beings of the class Reptilia against the loss of water through the skin?

Last Answer : The reptile skin is keratinized and impermeable to water while the amphibian skin is permeable. The skin impermeability made impossible the cutaneous gas exchange performed by amphibians and respiration became dependent on internal organs like airways and lungs.

Match the name of the animal (column I), with one characteristic (column II) and the phylum/ class (column  III) to which it belongs.(a) Limulus Body covered Pisces by chitinous exoskeleton (b) Adamsia Radially Porifera symmetrical (c) Petromyzon Ectoparasite Cyclostomata (d) Ichthyophis Terrestrial Reptilia

Description : Match the name of the animal (column I), with one characteristic (column II) and the phylum/ class (column  III) to which it belongs. (a) Limulus Body covered ... exoskeleton (b) Adamsia Radially Porifera symmetrical (c) Petromyzon Ectoparasite Cyclostomata (d) Ichthyophis Terrestrial Reptilia

Last Answer : c) Petromyzon Ectoparasite Cyclostomata

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 characteristics of class Pisces.

Description : Mention the characteristics of class Pisces.

Last Answer : a) Members of class Pisces are commonly called fishes. b) They are aquatic vertebrates. They can be freshwater or marine forms. c) They have a streamlined body which is divided into head, trunk ... fishes based on the composition of endoskeleton. Ex: Shark, Ray fish, Hippocampus, carp, Labeo etc

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

A lizard - like member of reptilia is sitting on a tree with its tail coiled around a twing. This animal should be

Description : A lizard - like member of reptilia is sitting on a tree with its tail coiled around a twing. This animal should be

Last Answer : A lizard - like member of reptilia is sitting on a tree with its tail coiled ... ) showing camouflage D. Chamaeleon showing protective colouration

Distinguish between Reptilia, Amphibia and Aves.

Description : Distinguish between Reptilia, Amphibia and Aves.

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Give the diagnostic characters of Reptilia.

Description : Give the diagnostic characters of Reptilia.

Last Answer : Give the diagnostic characters of Reptilia.

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

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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

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Last Answer : ANSWER: B -- PORIFERA 

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