Animal Kingdom

Which one of the following animals is correctly matched with its one characteristic and the taxon?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Sharks and dogfishes differ from skates and rays because

1. gill slits are ventrally placed
2. head and trunk are widened considerably
3. distinct demarcation between body and tail
4. their pectoral fins distinctly marked off from cylindrical bodies.

Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?

1. Pteropus and Ornithorhynchus – Viviparity
2. Garden lizard and crocodile – Three chambered heart
3. Ascaris and Ancylostoma – Metameric segmentation
4. Sea horse and flying fish – Cold blooded (poikilothermal)

Which one of the following categories of animals, is correctly described with no single exception in it?

1. All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal).
2. All bony fishes have four pairs of gills and an operculum on each side.
3. All sponges are marine and have collared cells.
4. All mammals are viviparous and possess diaphragm for breathing.

Which one of the following characteristics is common both in humans and adult frogs?

1. Four chambered heart
2. Internal fertilization
3. Nucleated RBCs
4. Ureotelic mode of excretion

In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remaining three are correct?

1. array|l|l|l| Genus name & Two characters & Class/Phylum \ Pila & (a) Body segmented & Mollusca \ & (b) Mouth with radula & \ array
2. array|l|l|l| Genus name & Two characters & Class/Phylum \ Asterias & (a) Spiny skinned & Echinodermata \ & (b) Water vascular system & \ array
3. array|l|l|l| Genus name & Two characters & Class/Phylum \ Sycon & (a) Pore bearing & Porifera \ & (b) Canal system & \ array
4. array|l|l|l| Genus name & Two characters & Class/Phylum \ Periplaneta & (a) Jointed appendages & Arthropoda \ & (b) Chitinous exoskeleton & \ array

Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct?

1. It is present only in larval tail in ascidian.
2. It is replaced by a vertebral column in adult frog.
3. It is absent throughout life in humans from the very beginning.
4. It is present throughout life in Amphioxus.

The figures (A – D) show four animals. Select the correct option with respect to a common characteristic of two of these animals. [Figure]

1. (A) and (B) have cnidoblasts for self-defence
2. (A) and (D) respire mainly through body wall
3. (C) and (D) have a true coelom
4. (B) and (C) show radial symmetry

What will you look for to identify the sex of the following?

1. Female Ascaris – sharply curved posterior end
2. Male frog – a copulatory pad on the first digit of the hind limb
3. Female cockroach – anal cerci
4. Male shark – claspers borne on pelvic fins

Which one of the following groups of animals is correctly matched with its characteristic feature without any exception?

1. Reptilia : possess 3-chambered heart with an incompletely divided ventricle
2. Chordata : possess a mouth with an upper and a lower jaw
3. Chondrichthyes : possess cartilaginous endoskeleton
4. Mammalia : give birth to young ones

In which one of the following the genus name, its two characters and its class/phylum are correctly matched?

1. array|l|l|l| Genus name & Two characters & Class/Phylum \ Ascaris & (i) Body segmented & Annelida \ & (ii) Males and females distinct & \ array
2. array|l|l|l| Genus name & Two characters & Class/Phylum \ Salamandra & (i) A tympanum represents ear & Amphibia \ & (ii) Fertilization is external & \ array
3. array|l|l|l| Genus name & Two characters & Class/Phylum \ Pteropus & (i) Skin possesses hair & Mammalia \ & (ii) Oviparous & \ array
4. array|l|l|l| Genus name & Two characters & Class/Phylum \ Aurelia & (i) Cnidoblasts & Coelenterata \ & (ii) Organ level of organization & \ array

Crocodile and penguin are similar to whale and dogfish in which one of the following features?

1. Possess a solid single stranded central nervous system
2. Lay eggs and guard them till they hatch
3. Possess bony skeleton
4. Have gill slits at some stage

One example of animals having a single opening to the outside that serves both as mouth as well as anus is

1. Octopus
2. Asterias
3. Ascidia
4. Fasciola

Which one of the following statements about all the four of Spongilla, leech, dolphin and penguin is correct?

1. Penguin is homoiothermic while the remaining three are poikilothermic.
2. Leech is a fresh water form while all others are marine.
3. Spongilla has special collared cells called choanocytes, not found in the remaining three.
4. All are bilaterally symmetrical.

Which one of the following kinds of animals are triploblastic?

1. Flatworms
2. Sponges
3. Ctenophores
4. Corals

Which one of the following statements about certain given animals is correct?

1. Roundworms (Aschelminthes) are pseudocoelomates
2. Molluscs are acoelomates
3. Insects are pseudocoelomates
4. Flatworms (Platyhelminthes) are coelomates

Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

1. Aschelminthes (round worms)
2. Ctenophores
3. Sponges
4. Coelenterates (cnidarians)

Which one of the following pairs of animals comprises 'jawless fishes'?

1. Mackerels and rohu
2. Lampreys and hagfishes
3. Guppies and hagfishes
4. Lampreys and eels

Peripatus is a connecting link between:

1. Ctenophora and Platyhelminthes
2. Mollusca and Echinodermata
3. Coelenterata and Porifera
4. Annelida and Arthropoda

Which one of the following in birds indicates their reptilian ancestry?

1. Two special chambers crop and gizzard in their digestive tract
2. Eggs with a calcareous shell
3. Scales on their hind limbs
4. Four-chambered heart

Ascaris is characterized by

1. presence of true coelom but absence of metamerism
2. presence of true coelom and metamerism (metamerisation)
3. absence of true coelom but presence of metamerism
4. presence of neither true coelom nor metamerism

Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?

1. array|l|l| Animals & Morphological features \ Scorpion, spider, cockroach & ventral solid central nervous system \ array
2. array|l|l| Animals & Morphological features \ Cockroach, locust, Taenia & metameric segmentation \ array
3. array|l|l| Animals & Morphological features \ Liver fluke, sea anemone, sea cucumber & bilateral symmetry \ array
4. array|l|l| Animals & Morphological features \ Centipede, prawn, sea urchin & jointed appendages \ array

Which one of the following phyla is correctly matched with its two general characteristics?

1. Echinodermata - pentamerous radial symmetry and mostly internal fertilization
2. Mollusca - normally oviparous and development through a trochophore or veliger larva
3. Arthropoda - body divided into head, thorax and abdomen and respiration by tracheae
4. Chordata - notochord at some stage and separate anal and urinary openings to the outside

Which one of the following is not a characteristic of Phylum Annelida?

1. Pseudocoelom
2. Ventral nerve cord
3. Closed circulatory system
4. Segmentation

Which of the following pairs are correctly matched? array|l|l|c|l| & Animals & & Morphological features \ (i) & Crocodile & – & 4-chambered heart \ (ii) & Sea urchin & – & Parapodia \ (iii) & Obelia & – & Metagenesis \ (iv) & Lemur & – & Thecodont \ array

1. (ii), (iii) and (iv)
2. only (i) and (iv)
3. only (i) and (ii)
4. (i), (iii) and (iv)

Which one of the following is a matching pair of body feature and the animal possessing it?

1. Ventral central nervous system – Leech
2. Pharyngeal gill slits absent in embryo – Chamaeleon
3. Ventral heart – Scorpion
4. Post-anal tail – Octopus

What is common between parrot, platypus and kangaroo?

1. Toothless jaws
2. Functional post-anal tail
3. Oviparity
4. Homoiothermy

What is true about Nereis, scorpion, cockroach and silverfish?

1. They all possess dorsal heart.
2. None of them is aquatic.
3. They all belong to the same phylum.
4. They all have jointed paired appendages.

Biradial symmetry and lack of cnidoblasts are the characteristic of

1. Hydra and starfish
2. starfish and sea anemone
3. Ctenoplana and Beroe
4. Aurelia and Paramecium

Two common characters found in centipede, cockroach, and crab are

1. book lungs and antennae
2. compound eyes and anal cerci
3. jointed legs and chitinous exoskeleton
4. green gland and tracheae