The flightless birds like Rhea, kiwi and Emu respectively belong to: {Question submitted by Adhithyan js}

Snakes and lizards shed their scales as skin cast. It is {Question submitted by Adhithyan js}

Find the correct option with respect to the diagram below {Question submitted by Adhithyan js}

) Which of the following belongs to class osteichthyes? i) Sea urchin ii)Sea horse iii) Flying fish iv) Sawfish v) Dog fish {Question submitted by Adhithyan js}

Which of the following is the respiratory organ of given animal {Question submitted by Adhithyan js}

The correct classification of Myxine is {Question submitted by Adhithyan js}

Which of the following is not a characteristic of amphibians? {Question submitted by Adhithyan js}

Amniotic eggs evolved as a means to _____ {Question submitted by Adhithyan js}

Find out the mismatch pair? (i) Naja – Middle ear absent, neurotoxic venom. (ii) Vipera – Haemotoxic venom, bifid tongue. (iii) Crocodile – Four chambered heart, presence of diaphragm. (iv) Hemidactylus – Garden lizard, camouflage. (v) Chameleon – prehensile tail, arboreal. (vi) Chelon – Marine, forelimbs modified as flippers. (vii) Tortoise – Limbs with forward digited claws, reptile. {Question submitted by Adhithyan js}

6-15 pairs of gill slits are the characteristic feature of: {Question submitted by Adhithyan js}

Syndactyly, prehensile tail and long protrusible tongue are the unique features of: {Question submitted by Adhithyan js}

Fill in the blanks marked in the classification table from the choices in the box with respect to A, B, C, D, E and F and choose the correct option: I. Pisces.   II. Osteichthys III. Agnatha   IV. Gnathostomata. V. Chondrichthys.   VI. Cyclostomata {Question submitted by Adhithyan js}

Which of the following is the characteristic feature of birds: {Question submitted by Adhithyan js}

In reptiles the class name refers to: {Question submitted by Adhithyan js}

Pteropus is the scientific name of: {Question submitted by Adhithyan js}

A jawless fish, which lay eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is: {Question submitted by Adhithyan js}

Retrogressive metamorphosis is shown by: {Question submitted by Adhithyan js}

Select the correct option of classification of Rana tigrina upto genus. {Question submitted by Adhithyan js}

Besides mammals, vivipary is also found in some members of: {Question submitted by Adhithyan js}

Notochord occurs all through the length of body and throughout life in: {Question submitted by Adhithyan js}

In Chondrichthys, claspers are seen on: {Question submitted by Adhithyan js}

Which of the following statements is/are true: (i) Phylum Chordata includes animals without notochord. (ii) Agnatha is a jawless vertebrate. (iii) Gnathostomata has two super classes, Pisces and Tetrapoda. (iv) Limbs are present in snake.(v) Reptiles are homeothermous. {Question submitted by Adhithyan js}

Which of the following is not a character of chordates? {Question submitted by Adhithyan js}

Amphibians share with reptiles all of the following characters except: {Question submitted by Adhithyan js}

Find out the incorrect statement: {Question submitted by Adhithyan js}

Which of the following statement is incorrect about amphibians. {Question submitted by Adhithyan js}

Identify the organism given below, its class along with its character: {Question submitted by Adhithyan js}

Identify the labeled parts in the diagram: {Question submitted by Adhithyan js}

Which among the following groups of animals belong to super class Tetrapoda. {Question submitted by Adhithyan js}

Crocodiles and penguin are similar to whale and dog fish in which one of the following characters: {Question submitted by Adhithyan js}

Choose the true and false statement about osteichthys. (i) They are gnathostomes and the most abundant vertebrates. (ii) Tail fin is homocercal and mouth is terminal. (iii) Heart is three chambered. (iv) External fertilization with young ones called fingerlings or fries. (v) Five gill slits without operculum. {Question submitted by Adhithyan js}

Ichthyophis is a: {Question submitted by Adhithyan js}

Viviparous animals are: {Question submitted by Adhithyan js}

Match the following: {Question submitted by Adhithyan js}

Column I	Column II
a) Ascidia	Auricularia larvae
b) Branchiostoma	Osteichthys
c) Protochordata	Tunicates
d) Pterophyllum	Lancelet
- -	Exclusively marine

Which of the following is/are not true? (i) In Urochordata, notochord is present only in larval tail. (ii) In cephalochordate, notochord extends from head to tail region. (iii) Branchiostoma belongs to hemichordate. (iv) Only one class of living members, class Cyclostomata represents the division Agnatha. {Question submitted by Adhithyan js}

Oil gland in birds are located : {Question submitted by Adhithyan js}

In order for amphibians to be more successful on land, they had to develop which of the following: {Question submitted by Adhithyan js}

Identify the class from the following features: (i) All living members of this class are ectoparasite on some fishes. (ii) Cranium and vertebral column are cartilaginous in nature. (iii) They are marine but migrate for spawning to fresh water. (iv) After spawning within a few hours they die. {Question submitted by Adhithyan js}

Which of the following characters are absent in Shark but present in Rohu: {Question submitted by Adhithyan js}

Doliolum belongs to the subphylum: {Question submitted by Adhithyan js}

Retention of larval characters even after sexual maturity is called: {Question submitted by Adhithyan js}

Which of the following is not true about reptilians. (i) They are mostly terrestrial animals and their body is covered by dry and cornified skin. (ii) Heart is usually three chambered. (iii) Fertilization is external. (iv) Tympanum is absent. (v) They are poikilothermous. {Question submitted by Adhithyan js}

Match the following: {Question submitted by Adhithyan js}

Column I	Column II
1) Aptenodytes	a. Vulture
2) Neophron	b. Tortoise
3) Bangarus	c. Garden lizard.
4) Testudo	d. Penguin
5) Hemidactylus	e. Krait
-   -	f. Wall lizard.

Match the following: {Question submitted by Adhithyan js}

Column I	Column II
a) Phylum	Liverworts
b) Sub phylum	Cyclostomata
c) Division	Tetrapoda
d) Super class	Chordata
e) Class	Vertebrata

Given below are the characteristic features of a fish. Identify the fish with the following features: (i) Body is covered by closely fitting shields. (ii) Head is prolonged into a tube like snout bearing small terminal mouth. (iii) Male possess brood pouch for incubating eggs. (iv) Males exhibit parental care. (v) Tail is prehensile used for anchoring. {Question submitted by Adhithyan js}

Find out the mismatch: {Question submitted by Adhithyan js}

Chordates possess: {Question submitted by Adhithyan js}

Read the statements: (i) Whale is the largest fish known. (ii) Duck billed platypus is a flying mammal. (iii) prototherians act as a connecting link between reptiles and mammals. (iv) Eutherians are characterised by true placentation. {Question submitted by Adhithyan js}

Select the correct set of animals of the same class: {Question submitted by Adhithyan js}

The characteristics of reptilians are: {Question submitted by Adhithyan js}