Animal Kingdom

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