COMBINED COMPETITIVE EXAMINATION
FOR RECRUITMENT TO THE POSTS OF
PROVINCIAL MANAGEMENT SERVICE, ETC -2021
CASE NO. 3C2022
SUBJECT: ZOOLOGY (PAPER-I)
TIME ALLOWED: THREE HOURS MAXIMUM MARKS: 100
NOTE:
i. All the parts (if any) of each Question must be attempted at one place instead of at different places.
ii. Write Q. No. in the Answer Book in accordance with Q. No. in the Q. Paper.
iii. No Page/Space be left blank between the answers. All the blank pages of Answer Book must be crossed.
iv. Extra attempt of any question or any part of the question will not be considered.
NOTE: Attempt FIVE Questions in all. Select at least TWO Questions from each Section. Attempt in Urdu or English.
SECTION-I
Q.No.1. (a) What are the different modes of locomotion in Protozoa?
(b) Discuss in detail the shell in different groups of Molluscs.
(10+10=20 Marks)
Q.No.2. (a) Describe the general characteristics of phylum Aschelminthes.
(b) Discuss different types of reproduction found in Porifera.
(10+10=20 Marks)
Q.No.3. (a) Explain the water vascular system in Echinodermata.
(b) Write note on larva of various classes of Arthropoda.
(10+10=20 Marks)
Q.No.4. Write short note on any FOUR of the following: (4 x 5 = 20 Marks)
a. Tagmatization b. Metamorphosis c. Nematocysts
d. Polymorphism e. Body plan of triploblastic acoelomate
SECTION-II
Q.No.5. (a) Write a detailed note on earliest known vertebrate.
(b) Discuss the adaptations in external structure and locomotion in mammals.
(10+10=20 Marks)
Q.No.6. (a) What adaptations of birds promote endothermy and flight? Why is endothermy important for birds?
(b) Explain in detail the causes of evolution and extinction of dinosaurs.
(10+10=20 Marks)
Q.No.7. (a) Discuss the origin and evolution of mammals tracing their synapsid lineage.
(b) Describe the process of excretion and osmoregulation in amphibians.
(10+10=20 Marks)
Q.No.8. Write short note on any FOUR of the following: (4×5=20 Marks)
a. Feathers b. Migration of birds c. Endothermy
d. Specialized teeth in mammals e. Evolution of jaw in vertebrates
FOR RECRUITMENT TO THE POSTS OF
PROVINCIAL MANAGEMENT SERVICE, ETC -2021
CASE NO. 3C2022
SUBJECT: ZOOLOGY (PAPER-I)
TIME ALLOWED: THREE HOURS MAXIMUM MARKS: 100
NOTE:
i. All the parts (if any) of each Question must be attempted at one place instead of at different places.
ii. Write Q. No. in the Answer Book in accordance with Q. No. in the Q. Paper.
iii. No Page/Space be left blank between the answers. All the blank pages of Answer Book must be crossed.
iv. Extra attempt of any question or any part of the question will not be considered.
NOTE: Attempt FIVE Questions in all. Select at least TWO Questions from each Section. Attempt in Urdu or English.
SECTION-I
Q.No.1. (a) What are the different modes of locomotion in Protozoa?
(b) Discuss in detail the shell in different groups of Molluscs.
(10+10=20 Marks)
Q.No.2. (a) Describe the general characteristics of phylum Aschelminthes.
(b) Discuss different types of reproduction found in Porifera.
(10+10=20 Marks)
Q.No.3. (a) Explain the water vascular system in Echinodermata.
(b) Write note on larva of various classes of Arthropoda.
(10+10=20 Marks)
Q.No.4. Write short note on any FOUR of the following: (4 x 5 = 20 Marks)
a. Tagmatization b. Metamorphosis c. Nematocysts
d. Polymorphism e. Body plan of triploblastic acoelomate
SECTION-II
Q.No.5. (a) Write a detailed note on earliest known vertebrate.
(b) Discuss the adaptations in external structure and locomotion in mammals.
(10+10=20 Marks)
Q.No.6. (a) What adaptations of birds promote endothermy and flight? Why is endothermy important for birds?
(b) Explain in detail the causes of evolution and extinction of dinosaurs.
(10+10=20 Marks)
Q.No.7. (a) Discuss the origin and evolution of mammals tracing their synapsid lineage.
(b) Describe the process of excretion and osmoregulation in amphibians.
(10+10=20 Marks)
Q.No.8. Write short note on any FOUR of the following: (4×5=20 Marks)
a. Feathers b. Migration of birds c. Endothermy
d. Specialized teeth in mammals e. Evolution of jaw in vertebrates
—————-
1 Views