VERTEBRATE ZOOLOGY (ZOOS2202)
Biological Science - BS
Semester: Resit
Level: 200
Year: 2013
REPUBLIC OF CAMEROON REPUBLIQUE DU CAMEROUN
Peace-Work-Fatherland Paix-Travail-Patrie
THE UNIVERSITY OF BAMENDA UNIVERSITE DE BAMENDA
FACULTY OF SCIENCE FACULTE DES SCIENCES
P.O. Box 39 Bambili
Tell: (+237) 22 81 63 50
RESIT EXAMINATION
COURSE TITLE: VERTEBRATE ZOOLOGY COURSE CODE: ZOOS2202
Hall: ASHANJI TIME: 14H30-17H30 Date: 05. 09. 2013
PART 1
Answer all questions
1 -Discuss with specific examples the main characteristics of Chordata. (8 mks)
2- Clearly distinguish between the different groups in Protochordates. (5 mks)
3- Discuss with concrete examples the different classes into which fishes are divided. (6 mks)
4- Discuss excretion and gas exchange in fishes. (6 mks)
5- Illustrate with an annotated diagram the main sections in a Hemichordata. (5 mks)
PART II
1- Define the following terms: Gnathostomata, ihombencephalon, Fenestration, amniotic egg.
Threatened species. (0.5 *5=2.5 mks)
2- Instructions for multiple choice questions: Right answer = 0.5 mk; Wrong answer = - 0.25 mk; no
answer = 0 mk. Choice only the correct answer Example: A-a (5 mks)
A- The locomotive appendages of terrestrial vertebrates are called:
a) pterygium; b) tetrapods; c) chiridium; d) pterygium or chiridium.
B- The species Hemidactylus mabuia belong into:
a) Hemichordata group; b) Chordata group; c) Echinodermata group.
C- The reptile’s scales are derived mostly from:
a) the epidermis like fish scales; b) the epidermis unlike fish scales; c) the dermis like fish scales.
D-The amphibian larva uses:
a) external gills for breathing; b) internal gills for breathing; c) skin and lungs for breathing.
E-Concerning the amphibian fertilization, the salamanders practice:
a) only internal fertilization; b) only external fertilization; c) internal and external fertilization
F-Identify the intruder of the following lists:
a) Lampreys, Sharks, Mackerel, Toads, Turtles, Pelicans, Lions.
b) Human, pigeon, shark, frog, gecko, turtle, crocodile, hen.
c) Salamander, frog, protee, siren
d) salamander, toad, frog, caecilian, crocodile.
e) Python sebae, Boa constrictor, Varanusniloiicus, Naja naja, Vipera,
3-Explain how the temperature within the nest influences the sex of the hatchings for Reptiles, (1.5 mks)
4-
Use the double entrance
table to give the common and specific characteristics of the following
vertebrates:
tortoises, hog, caimans, and vipers. (4 mks)
5- Give and justify the systematic
position of the following species: Bufo maculatus and
Hemidactylus mabula
.
(1.5*2=3 inks)
6-What were the three major amniote radiations of the Mesozoic and Pom which lineage or lineages did the birds and mammals
descend? How could you distinguish the skulls characteristic of these different radiations? (4 mks)
PART III
Qn. 1
a) List the sexual activities of birds (3 mks)
b) How is fertilization of the egg made possible in birds that have no intromittent ogan? (2 mks)
c) How do birds ensure that eggs laid are well taken care of? (2 mks)
d) How do mammals ensure parental care? (3 mks)Qn. 2
a) What are the two problems a bird must solve in order to fly? (2 mks)
b) Name the 2 primary functions of feathers essential for flight (2 mks)
www.schoolfaqs.net
Qn. 3
Running, hopping, climbing, flying, burrowing and swimming are different modes of locomotion used
by mammals. What adaptations) in body structure help these animals use a particular mode? (6 mks)
www.schoolfaqs.net
