Animal Kingdom

A group of researchers procured some fish-like animals and upon investigation the following characters were observed: Which of the following species of animals did they consider to fit best with these characters ?

1. Scoliodon sp.
2. Exocoetus sp.
3. Petromyzon sp.
4. Branchiostoma sp.

Select the set of fishes which belong to the class Osteichthyes:

1. Saw fish, Fighting fish and Dog fish
2. Devil fish, Cuttlefish and Hagfish
3. Starfish, Hagfish and Cuttlefish
4. Flying fish, Angel fish and Fighting fish

All living members of the class Cyclostomata are :

1. Symbiotic
2. Ectoparasite
3. Free living
4. Endoparasite

Match List I with List II : Choose the correct answer from the options given below :

1. A-II, B-I, C-III, D-IV
2. A-III, B-I, C-II, D-IV
3. A-IV, B-I, C-II, D-III
4. A-III, B-II, C-I, D-IV

Match List-I with List-II. Choose the correct answer from the options given below:

1. A-II, B-IV, C-I, D-III
2. A-I, B-III, C-II, D-IV
3. A-II, B-III, C-I, D-IV
4. A-I, B-II, C-III, D-IV

Select the incorrect statements with respect to Cyclostomes: Choose the most appropriate answer from the options given below:

1. A and D only
2. A and B only
3. B and C only
4. B and D only

Match the following columns and select the correct option :

1. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
2. (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
3. (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
4. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

Which of the following characteristic features always holds true for the corresponding group of animals?

1. Possess a mouth with an upper and a lower jaw – Chordata
2. 3-chambered heart with one incompletely divided ventricle – Reptilia
3. Cartilaginous endoskeleton – Chondrichthyes
4. Viviparous – Mammalia

Choose the correct statement

1. All mammals are viviparous.
2. All cyclostomes do not possess jaws and paired fins.
3. All reptiles have a three-chambered heart.
4. All pisces have gills covered by an operculum.

A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is

1. Neomyxine
2. Petromyzon
3. Eptatretus
4. Myxine

Which of the following represents the correct combination without any exception? (Characteristics – Class)

1. Sucking and circular mouth; jaws absent, integument without scales; paired appendages. – Cyclostomata
2. Body covered with feathers; skin moist and glandular, forelimbs form wings; lungs with air sacs. – Aves
3. Mammary gland; hair on body; pinnae; two pairs of limbs. – Mammalia
4. Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. – Chondrichthyes

A marine cartilaginous fish that can produce electric current is

1. Pristis
2. Torpedo
3. Trygon
4. Scoliodon.

Match the name of the animal (column I), with one characteristic (column II), and the phylum/class (column III) to which it belongs.

1. array|l|l|l| Column I & Column II & Column III \ Limulus & Body covered by chitinous exoskeleton & Pisces \ array
2. array|l|l|l| Column I & Column II & Column III \ Adamsia & Radially symmetrical & Porifera \ array
3. array|l|l|l| Column I & Column II & Column III \ Petromyzon & Ectoparasite & Cyclostomata \ array
4. array|l|l|l| Column I & Column II & Column III \ Ichthyophis & Terrestrial & Reptilia \ array

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.

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

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