VERTEBRATE ZOOLOGY (ZOOS2202)
Biological Science - BS
Semester: Second Semester
Level: 200
Year: 2016
REPUBLIC OF CAMEROON THE UNIVERSITY OF BAMENDA
Peace-Work-Fatherland P. O. BOX 39 Bambili
School/Faculty: _SCIENCE_ Department:Biological Sciences Lecturer(s): Dr Ntonifor
H, Dr Yana W, Mrs Ebanga Echi J Course Code: ZOOS2202___Course Title:
Vertebrates zoology Date: 24/09/2016_______Halls: PBA 01-04 ___Time: 07:30-9:30
Instructions: Answer ALL questions
PART 1: (20 marks)
1. What is a chordate animal? 2mk
2. The Deuterostomia branch of the animal kingdom includes the phyla ….. And ….. 1.5 mks
3. …….. are the most primitive of the true vertebrates? 1 mk
4. Among fishes, the best known mouth breeders are the ……… 1mk
5. Enumerate three biological contributions of the phylum chordate. 3 mks
6. Outline in point form
i. The basic functions of the digestive system of fishes. 3 mks
ii. The basic functions of the excretory system of fishes. 2mks
7. How do lampreys and hag fishes depart from the fundamental plan of the digestive system
of Vertebrates? 2.5mks
8. …………..is the functional kidney of embryonic amniotes lmk
9. Name 6 modifications of the skin amongst the various classes of vertebrates. 3mks
PART Il : (15 marks)
1- Draw, and label the respiratory apparatus of snakes. Then justify the structure of that
apparatus which is different from the other reptiles. 3 marks
2- Explain how the temperature within the nest influences the sex of the hatchings for
Reptiles. 3 marks
3- During the practical: dissection of frog or toad, the animal was decerabrated and
demedullated. Explain in one sentence why? 2marks
4- Which criteria permit you to subdivide Reptiles in subclasses? List the reptiles’ subclasses
5. Copy and complete the following table: 5 marks
Characteristics
Animals
Common characteristics
Specific characteristics
1-
Lamprey
2-
Shark
3-
Bar fish
4-
Frog
5
-
Crocodile
6-
Pigeon
7-Mouse
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PART III: (10 marks). Answer all questions using just the right word(s) or phrase(s)
1-What is the unique feature of birds that allow them to always breathe fresh air? 1mk
2- Name the order to which humans, apes, monkeys, and lemurs belong……… 1mk
3- What is the function vibrissae in mammals? .................................................... 1mk
4- Which characteristic enables mammals to live anywhere successfully? …. 1mk
5- List the sexual activities of birds ………………………………………….. 3 mks
6- How is fertilization of the egg made possible in birds that have no intromittent ogan? 1mk
7- How do birds ensure that eggs are well taken care of? ………………. 2 mks
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