Q. No.
Which one of the following is not characteristic of phylum-Annelida?
1. Closed circulatory system
2. Segmentation
3. Pseudocoelom
4. Ventral nerve cord
1. Closed circulatory system
2. Segmentation
3. Pseudocoelom
4. Ventral nerve cord
| 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 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
Which one of the following has an open circulatory system?
1. Pheretima
2. Periplaneta
3. Hirudinaria
4. Octopus
Biradial symmetry and lack of cnidoblasts are the characteristics of:
1. Starfish and sea anemone
2. Ctenoplana and Beroe
3. Aurelia and Paramecium
4. Hydra and starfish
© 2025 GoodEd Technologies Pvt. Ltd.