Biology Past Questions And Answers
2511
the larval stage of a mosquito is called
- A. wriggler
- B. grub
- C. maggot
- D. caterpillar
2512
Vaccination results in
- A. aiding red blood cells to carry more oxygen
- B. production of antibodies which destroy toxins of germs
- C. arresting excessive bleeding
- D. production of white blood cells which engulf and digest bacteria.
2513
Euglena moves by:
- A) Whipping of its flagellum
- B) Beating of its cilia
- C) Rotating action of the flagella
- D) pushing out a jet of water from an organelle
2514
An accurate identification of a rapist can be carried out by conducting a
- A. RNA analysis test
- B. DNA analysis
- C. blood group text
- D. behavioural traits
2515
The scientific study of life is
- A. Botany
- B. Biology
- C. Zoology
- D. Ecology
2516
Plants with breathing roots are characteristic features of vegetation in
- A. tropical grassland
- B. temperate grassland
- C. saltwater swamp
- D. Tropical rain forest
2517
The ability of a living organism to detect and respond to changes in the environment is referred to as
- A. locomotion
- B. taxis
- C. irritability
- D. growth
2518
The heart of the adult frog consist of
- A. two auricles and two ventricles
- B. one auricle and one ventricle
- C. two ventricle and one auricle
- D. one ventricle and two auricles
2519
Woman do not suffer from colour blindness because
- A. the trait is sex-linked
- B. only men are colour blind
- C. the genes are recessive and sex-linked
- D. the genes occur on both the X and Y chromosomes
2520
Which of the following processes occurs by diffusion?
- A. Reabsorption of water in kidney tubules
- B. Entry of water into the cytoplasm of unicellular animals
- C. Absorption of water in the large intestine
- D. Exchange of nutrients between a mother and the foetus