Q. No.Consider the following statements:
I. The members of Phylum Porifera are exclusively marine.
II. Ctenophores are the largest animals that use cilia for locomotion.
III. Roundworms may be free-living or parasitic in plants and animals.
Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II, and III
I. The members of Phylum Porifera are exclusively marine.
II. Ctenophores are the largest animals that use cilia for locomotion.
III. Roundworms may be free-living or parasitic in plants and animals.
Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II, and III
The feature lacking in bony fishes would be:
| 1. | Operculum | 2. | Swim bladder |
| 3. | Ammonotelism | 4. | Placoid scales |
The number of correct statements amongst the given statements is:
| I. | The digestive system in Platyhelminthes is incomplete. |
| II. | Coelenterates, Ctenophores, and Echinoderm larvae are radially symmetrical. |
| III. | Bilateral symmetry is seen in annelids and arthropods but not in mollusks. |
| IV. | Notochord is a mesodermally derived structure formed on the dorsal side in some animals. |
| V. | Aschelminthes are pseudocoelomates |
1. 2
2. 3
3. 4
4. 5
Which of the following would be a characteristic of the animal shown in the given diagram?
| 1. | Excretory organ is the proboscis gland. |
| 2. | They migrate for spawning to fresh water. |
| 3. | Notochord is present only in the larval tail. |
| 4. | Parapodia are present for swimming. |
All cyclostomes are ___________ on some fishes; paired fins are _________, cranium is ________ and circulation is _______ type.
| 1. | Ectoparasites, Absent, Cartilaginous, Open |
| 2. | Endoparasites, Present, Bony, Closed |
| 3. | Ectoparasites, Absent, Cartilaginous, Closed |
| 4. | Ectoparasites, Present, Cartilaginous, Open |
Select the group of animals belonging to different phyla?
| 1. | Hirudinaria, Limulus, Laccifer. |
| 2. | Nereis, Dentalium, Aplysia. |
| 3. | Pheretima, Chaetopleura, Ophiura. |
| 4. | Cucumaria, Antedon, Loligo. |
Which of the following animals exhibit all these characters – bilateral symmetry, triploblastic, segmented and eucoelomate?
1. Echinoderms
2. Roundworms
3. Molluscs
4. Annelids
Pinworm, Hookworm and Filaria worm belong to:
1. Annelida
2. Platyhelminthes
3. Aschelminthes
4. Arthropoda
In which of the following animals, the body is cylindrical and is composed of an anterior proboscis, a collar, and a long trunk?
1. Hemichordates
2. Urochordates
3. Cephalochordates
4. Vertebrate chordates
In Amphibia:
| I. | Skin is moist without scales |
| II. | A tympanum represents the ear |
| III. | Fertilization is external |
| 1. | Only I and II are correct. |
| 2. | Only I and III are correct. |
| 3. | Only II and III are correct. |
| 4. | I, II, and III are correct. |
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