Biology Past Questions And Answers
2661
In genetic counseling, a man with hemoglobin formation HbA HbS is most preferred to marry a woman of?
- A. HbA HbA
- B. HbC HbH
- C. HbM HbF
- D. HbS HbS
2662
Which of these factors does not contribute towards the ascent of water in plants?
- A. Root pressure
- B. Capillarity
- C. Transpiration pull
- D. Turgor pressure
2663
Each of the following is a step in mitosis EXCEPT __________.
- A. spindle fibers shorten
- B. the cytoplasm divides into two daughter cells
- C. chromosomes condense
- D. homologous pairs separate and are pulled toward opposite poles of the cell
2664
Nitrogen is released into the atmosphere when ________
- A. plants absorbs mineral salt
- B. sugar is completely broken down
- C. through plant uptake
- D. when lightning strike
2665
An ecosystem includes which of the following?
- A. Biomes, communities, and populations
- B. Communities and populations
- C. Populations only
- D. Biomes and populations
2666
The association between bacteria residing in the caecum and the ruminant is
- A. parastitism
- B. predation
- C. saprophytism
- D. mutualism
2667
Which of the following soil fertility improvement methods will have the most negative effect on the ecosystem if not controlled?
- A. Application of N-P-K fertilizer
- B. Shifting cultivation
- C. Mixed farming
- D. Crop rotation
2668
All of following are true of cellular respiration EXCEPT __________.
- A. cellular respiration is the most efficient way to harvest energy from glucose
- B. cellular respiration yields 36
- C. oxygen is the final electron acceptor
- D. cellular respiration is an anaerobic process
2669
Yeast is added to the dough during the preparation of bread because it produces
- A. ethanol
- B. heat
- C. carbon dioxide
- D. carbohydrate
2670
The plantain reproduces asexually by
- A) spores
- B) bods
- C) fragments
- D) sucker

