Biology Past Questions And Answers
The diagram below are illustrations of forms in which a particular group of organisms exist. Study them and answer the question.
in which of the illustrated forms does the organism that causes cholera exist?
- A. III
- B. II
- C. IV
- D. V
An increase in air pressure in the lungs is due to the
- A. increase in the volume of the thoracic cavity
- B. upward movement of he ribs
- C. relaxation of the diaphragm
- D. contraction of the intercostal musles
The organelle common to both plant and animal cells is the
- A. centrioles
- B. plasmalemma
- C. cell wall
- D. chloroplast
In which of the following biomes is the south western part of Nigeria located?
- A. Temperate forest
- B. Tropical rainforest
- C. Tropical woodland
- D. Desert
During sexual reproduction in Paramecium, how many times does the zygote divide to produce eight nuclei?
- A. 1
- B. 2
- C. 3
- D. 4
Which of the following types of transport require ATP?
- A. Glucose moving into the cell, down its concentration gradient, through a channel
- B. Water moving from an area of low solute concentration to an area of high solute concentration
- C. Water moving down its concentration gradient through an aquaporin
- D. The Na+/K+ pump releasing 3 sodium ions outside of the cell and 2 potassium ions into the cell
The use of water closet and septic tanks is preferred to the use of bucket and pit latrines because
- A. it is cost effective
- B. contaminated faeces are completely kept away from flies
- C. the water for flushing contains chlorine which kills the germs
- D. It prevents flies from breeding
What is the term used to describe biotic and abiotic factors in the environment of the organism?
- A. habitat
- B. biome
- C. ecosystem
- D. ecological niche
Carbohydrates are stored in the animal cell in the form of
- A. starch
- B. glycogen
- C. plastid
- D. maltose
The function of the red head in male Agama lizards is to
- A. scare other males from the territory
- B. warn predators of the distastefulness of the animal
- C. attract female lizards for mating purposes
- D. conceal and camouflage the animal from predators