Biology Past Questions And Answers
The experiment above is used to demonstrate the process of
- A. transpiration
- B. water culture
- C. diffusion
- D. osmosis
The hypha of rhizopus is said to be non-septate because it
- A. does not contain chloropyll
- B. has no cross wall
- C. is vacuoled
- D. stores oil globus
Use the information on the stages involved in conjugation to answer the 2 questions below I. Transfer of one cell content into the adjacent cell ll. Formation of a conjugation tube III. Secretion of thick wall to form a zygospore IV. Formation of a protuberance V. Germination of a filament
Which of the following arrangements is the correct sequence of the process?
- A. II, I, IV, V and III
- B. IV, II, I, III and V
- C. IV, I, II, V and III
- D. V, II, III, IV and I
The outermost embryonic membrane in the mammal is the
- A. amnion
- B. chorion
- C. allantois
- D. yolk sac
During germination of seeds water is taken by the process of
- A. diffusion
- B. hydrolysis
- C. imbibition
- D. translocation
Which of the following is transmitted through mosquito bite?
- A) filariasis
- B) typhus
- C) plague
- D) schistomaisis
A feature which adapts birds to flight is the possession of
- A. scaly legs
- B. light bones
- C. two walking legs
- D. a pointed beak
Which of the following is NOT found in DNA?
- A. Cytosine
- B. Ribose
- C. Deoxyribose
- D. Phosphate groups
(a) Describe the carbon cycle.
(b) State the functions of:
(i) nitrogen fixing bacteria
(ii) nitrifying bacteria
(iii) denitrifying bacteria; in nature.
View Discussion (0)WAEC 2013 THEORYAt which of the following stages of mitosis do the two daughter chromosomes separate completely?
- A. Early prophase
- B. Telophase
- C. Anaphase
- D. Late prophase