Biology Past Questions And Answers
The excretory organ in insects is the
- A. kidney
- B. malpighian tubule
- C. flame cell
- D. nephridium
Possession of strong adhesives is a feature of animals living in/on
- A. sandy beaches
- B. rocky shores
- C. benthic zones
- D. deserts
Which of the following occurs when a person looks at a distant, dim object and then looks at a much closer, bright object? In each eye, the pupil becomes
- A. larger, while the lens becomes thicker
- B. larger, while the lens becomes thinner
- C. smaller, while the lens becomes thicker
- D. smaller while the lens becomes thinner
The most important ecological factor in a terrestrial environment is
- A. rainfall
- B. humidity
- C. wind
- D. soil
The part of the kidney where each tubule begins is called
- A) Capsule
- B) Cortex
- C) Glomerulus
- D) Urether
The mode of nutrition exhibited by a tapeworm is
- A. symbiotic
- B. saprophytic
- C. parasitic
- D. holozoic
In humans, which of the following pairs of hormones correspond to male and female respectively?
- A. Oestroqen and adrenalin
- B. Progesterone and testosterone
- C. Testosterone and oestrogen
- D. Adrenalin and progesterone
a. Statefive:
(i) challenges that make conservation of resources difficult; [5 marks]
(ii) ways by which the Government of a country ensures conservation of natural resources. [5 marks]
b. What is an endangered species? [3 marks]
c. A child with blood group O was born to a mother of blood group A.
(i) What is the blood group genotype of the child? [1 marks]
(ii) What are the possible blood group genotypes of the father? [3 marks]
d. Statethreereasons why genetic variation is important to plants. [3 marks]
View Discussion (0)WAEC 2019 THEORYWhich of the following statements is true about the ABO blood group system?
- A. Antigens are located on the surface of white blood cells
- B. Antibodies are located in the blood plasma
- C. Antibodies are located on the surface of red blood cells
- D. Antigens are located in the blood plasma
Plants of temperate origin can be grown in tropical areas in the vegetation zones of the
- A. rain forest
- B. guinea savanna
- C. sudan savanna
- D. montane forest