Biology Past Questions And Answers
(a) What is a balanced diet?
(b) Name the classes of food stating the importance of any two to the human diet.
(c) In a tabular form, state the source, substrate and end products of the following enzymes: (i) ptyalin: (ii) pepsin; (iii) lipase.
View Discussion (0)WAEC 2007 THEORYWhich of the following performs similar functions?
- A. Ascospores ans ascocarp
- B. Antherozoids and rhizoids
- C. sorus and indusium
- D. Strobili and inflorescence
During which of the following phases of the cell cycle does duplication of the genetic material occur?
- A. S
- B. Metaphase
- C. G2
- D. Anaphase
One of these is used for excretion in earthworm
- A. Contractile vacuole
- B. Flame cell
- C. Malpighian tubule
- D. Nephridium
The components of blood in man are?
- A. red blood cells, white blood cells, plasma and water
- B. red blood cells, white blood cells, and plasma
- C. red blood cells, white blood cells, and platelets
- D. red blood cells, white blood cells, plasma and platelets
The sterile individuals in the honey bee are known as
- A) Drone
- B) Queens
- C) Workers
- D) None of these
_______ is an autotrophic mode of nutrition.
- A) chemosynthesis
- B) saprophytism
- C) parasitism
- D) symbiosis
Bryophytes are different from flowering plants because they
- A) are simple small plants
- B) carry out alternation of generation
- C) posses small
- D) posses no vascular tissue
Mammals acclimatize to reduced oxygen content at high altitudes by
- A. the stimulation of marrow to reduce the amount of erythrocytes produced
- B. increasing the rate at which erythrocytes are destroyed
- C. the stimulation of marrow to produce more erythrocytes
- D. increasing the break down of the protein portion of the erythrocytes
Gaseous exchange occurs through the following structures in some organisms except
- A. spiracle and tracheae
- B. alveoli and lungs
- C. stomata and lenticels
- D. chloroplast and plastids

