Zoology/Botany Multiple Choice Questions

1. The type of palate found in pigeon’s skull is:
(a) dromaeognathous
(b) schizognathous
(c) aegithognathous
(d) desmognathous
Ans. (b)

2. Consider the following characteristics of an animal:
1. Body covering consists of a thin, membranous and transparent cuticle.
2. An extensive perivisceral coelom is absent.
3. Digestive system includes a long alimentary canal and digestive glands.
4. Parapodia and setae are absent.
The above stated characteristics are true in case of which one of the following?
(a) Pheretima posthuma
(b) Hirudinaria granulosa
(c) Nereis dumerillii
(d) Lumbricus viridis
Ans. (b)

3. The class of Arthropoda which has thin cuticle and dermo-muscular body wall is
(a) Crustacea
(b) Arachnida
(c) Onychophora
(d) Myriapoda
Ans. (c)

4. Which one of the following is a characteristic of adult ascidian?
(a) Elongated tail
(b) Large notochord
(c) Enlarged pharynx
(d) Well developed statocyst
Ans. (c)

5. Which one of the following is not a characteristic of Bryozoa?
(a) They are microscopic colonial forms
(b) They are included under the group Lophophorate Coelomates.
(c) Alimentary canal is always in the form of a straight tube
(d) The colony is composed of zoids
Ans. (c)

6. The cryptozoite stage in the life cycle of Plasmodium is found in which one of the following?
(a) Human erythrocytes
(b) Human hepatocytes
(c) Salivary glands of Anopheles
(d) Intestinal epithelium of Anopheles
Ans. (b)

7. Lung fishes are
(a) Marine inhabitants
(b) Marine and freshwater inhabitants
(c) Freshwater and terrestrial inhabitants
(d) Freshwater inhabitants
Ans. (d)

8. In singing birds, the sound is produced by the:
(a) lungs
(b) air-sacs
(c) syrinx
(d) larynx
Ans. (c)

9. Match list-I (animals) with list-II (the group to which they belong) and select the correct answer using the codes given below the lists:
List-I List-II
A. Hammer headed shark 1. Marsupial
B. Pangolin 2. Condrichthyes
C. Emu 3. Neornithes
D. Mud puppy 4. Eutheria
5. Urodela
Codes:
A B C D
(a) 2 4 3 5
(b) 4 3 5 1
(c) 2 4 5 1
(d) 4 2 3 5
Ans. (a)

10. In rabbit, jugal and squamosal form:
(a) palatine process
(b) zygomatic arch
(c) neural arch
(d) sigmoid arch
Ans. (b)

11. In the crarnostylic or cranioamphystylic skull
(a) incus is formed form quadrate and malleus is formed form articular
(b) incus is formed form articular and malleus is formed form quadrate
(c) both incus and malleus are formed form quadrate
(d) both incus and malleus are formed from squamosal
Ans. (a)

12. Neopallium appeared for the first time in one group of vertebrates and reached a high level of development in another group of vertebrates. The two groups of vertebrates in question are respectively:
(a) reptiles and birds
(b) amphibians and mammals
(c) birds and mammals
(d) reptiles and mammals
Ans. (b)

13. Which one of the following is the correct set of the bones in the hind limb of frog?
(a) Femur, tiblo-fibula, tarsals, metatarsal, phalanges
(b) Femur, ilium, ischium, pubis, phalanges
(c) Humerus, radio-ulna, ulnare, metacarnals, phalanges
(d) Humerus, scapula, coracoid, çlavile, phalanges
Ans. (a)

14. As compared to the pelvic limb, the pectoral limb is better suited to accommodate suspended weight because:
(a) the pectoral limb bears body with by a solid vertebral connection with the backbone
(b the pectoral girdle and limb have no skeletal connection with the adult skeleton in all the vertebrates
(c) a group of muscles attach the shoulder blade to the trunk in a fanned manner radiating in all directions
(d) the ligments of the shoulder joint are very highly developed and are good weight-bearing elements.
Ans. (c)

15. The correct course of food carrying water current in ascidian is
(a) Branchial siphon – Atrial cavity-> Pharynx-> Gill slits —> Endostyle -, Atrial siphon
(b) Branchial siphon -> Pharynx-> Gill slits – Atrial cavity —, Atrial siphon
(c) Atrial siphons-> Pharynx —> Gill slits —> Atrial cavity—> Branchial siphon
(d) Atrial siphon —> Endostyle —* Pharynx —> Gill slits —> Atrial cavity-> Branchial siphon
Ans. (b)