Waec Biology Past Questions For Year 2004
Question 21
The body temperature of a mammal has to be maintained at a fairly constant level because
- A. excessive heat is continually lost by the body to the environment
- B. their body temperature is always higher than that of the environment
- C. evaporation of sweat cools the body
- D. metabolic activities function best at certain temperature
Question 22
Which of the following groups contains only macro-nutrients?
- A. phosphorus, nitrogen and molybdenum
- B. manganese, copper and zinc
- C. boron, sulphur and iron
- D. calcium, magnesium and potassium
Question 23
The process by which fruits develop without fertilization is called
- A. parthenocarpy
- B. pathology
- C. hermaphroditism
- D. layering
Question 24
The following insects undergo incomplete metamorphosis except
- A. termite
- B. cockroach
- C. butterfly
- D. locust
Question 25
Which of the following occurs when a person looks at a distant, dim object and then looks
at a much closer, bright object? In each eye, the pupil becomes
- A. larger, while the lens becomes thicker
- B. larger, while the lens becomes thinner
- C. smaller, while the lens becomes thicker
- D. smaller while the lens becomes thinner
