1. | Arthropoda - The body is divided into a head, thorax, abdomen and respiration by mouth |
2. | Chordata - Notochord at some stage and separate anal and urinary openings to the outside |
3. | Echinodermata – Pentamerous radial symmetry and mostly internal fertilization |
4. | Mollusca - Normally oviparous and developed through a trochophore or veliger larva |
Which one of the following pairs is mismatched?
1. | Pila globosa - pearl oyster | 2. | Apis indica- honey bee |
3. | Laccifer lacca- lac insect | 4. | Bombyx mori- silkworm |
What is common between parrot, platypus, and kangaroo?
1. Homeothermy
2. Toothless jaws
3. Functional post-anal tail
4. Oviparity
1. | absence of true coelom but the presence of metamerism |
2. | presence of neither true coelom nor metamerism |
3. | presence of true coelom but the absence of metamerism |
4. | presence of true coelom and metamerism (metamerisation) |
Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
Animals |
Morphological feature |
(a) Liver fluke, sea anemone, sea cucumber |
Bilateral symmetry |
(b) Centipede, prawn, sea urchin |
Jointed appendages |
(c) Scorpion spider, cockroach |
Ventral solid central nervous system |
(d) cockroach locust, Taenia |
Metameric segmentation |
1. a
2. b
3. c
4. d
Which one of the following is a matching pair of a body feature and the animal possessing it?
1. Post-anal-tail - Octopus
2. Ventral Central nervous system - Leech
3. Pharyngeal gills slits absent in embryo - Chamaeleon
4. Ventral heart - Scorpion
Which of the following pairs are correctly matched?
Animals | Morphological features | |
A. | Crocodile | 4-chambered heart |
B. | Sea urchin | Parapodia |
C. | Obelia | Metagenesis |
D. | Lemur | Thecodont |
1. A, C, and D
2, B, C, and D
3. Only A and D
4. Only A and B
What is true about Nereis, Scorpion, Cockroach, and Silverfish?
1. They all have jointed paired appendages
2. They all possess a dorsal heart
3. None of them is aquatic
4. They all belong to the same phylum
Which one of the following is a matching set of a phylum and its three examples?
1. Cnidaria- Bonellia, Physalia, Aurelia
2. Platyhelminthes- Planaria, Schistosoma, Enterobius
3. Mollusca- Loligo, Teredo, Octopus
4. Porifera- Spongilla, Euplectella, Pennatula
Metameric segmentation is characteristic of:
1. Platyhelminthes and Arthropoda
2. Echinodermata and Annelisa
3. Annelida and Arthropoda
4. Mollusca and Chordata