Animal Kingdom

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

Metameric segmentation is the characteristic of

1. Mollusca and Chordata
2. Platyhelminthes and Arthropoda
3. Echinodermata and Annelida
4. Annelida and Arthropoda

Which one of the following is a matching set of a phylum and its three examples?

1. Porifera - Spongilla, Euplectella, Pennatula
2. Cnidaria - Bonellia, Physalia, Aurelia
3. Platyhelminthes - Planaria, Schistosoma, Enterobius
4. Mollusca - Loligo, Teredo, Octopus

Which one of the following has an open circulatory system?

1. Octopus
2. Pheretima
3. Periplaneta
4. Hirudinaria