ARHOLIADAU EXAMINATIONS
SEMESTER 2 EXAMINATIONS 2010
IBERS (BIOLOGICAL SCIENCES)
BS22410 VERTEBRATE ZOOLOGY
TIME ALLOWED: TWO HOURS
ANSWER THREE QUESTIONS. THE QUESTIONS CARRY EQUAL MARKS
1. Choose one vertebrate species and describe how it is adapted to its specific
ecological niche in terms of its skeletal structure, circulatory system, respiratory
system, nervous system, digestive system and mode of reproduction.
2. Compare and contrast adaptations of vertebrates for breathing in air and
breathing in water.
3. Explain, using diagrams, how the six embryonic aortic arches are modified to
form the circulatory systems of adult mammals and birds.
4. Discuss the evolution of the male vertebrate reproductive system.
5. Compare and contrast adaptations of the vertebrate skull for capturing prey in
water and in air.
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