Animal Kingdom

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

In which one of the following sets of animals do all the four give birth to young ones?

1. Kangaroo, hedgehog, dolphin, Loris
2. Lion, bat, whale, ostrich
3. Platypus, penguin, bat, hippopotamus
4. Shrew, bat, cat, kiwi