Biology WAEC

Which of the following statements is not associated with the theory of natural selection?

A. There is a struggle for existence B. There is competition among the offsprings C. The weaker offsprings are eliminated…

4 years ago

What is the significance of the bee dance to other bees?

A. Warning signal B. Presence of food C. Mating signal by the male D. Soaring the enemies away E. Time…

4 years ago

The process by which plants and animals are modified in structure, physiology and behaviour in order to survive is known as?

A. evolution B. adaptation C. succession D. aggregation E. hibernation Correct Answer: Option B - adaptation

4 years ago

Which of the following statements about the modifications of pentadactyl fore-limb is not correct?

A. Wings are modified for flying in birds B. Flippers are modified for grasping in sharks C. Legs are modified…

4 years ago

Adaptive radiation as illustrated by the variety of forms in insects can be regarded as?

A. behavioral modification B. a case of rapid population growth C. a physiological process D. an evidence of evolution E.…

4 years ago

The precondition for transfusion of blood to an accident victim is?

A. seeking the consent to his parents B. ascertaining the religious belief of the victim C. cross-matching the blood group…

4 years ago

The genetic make-up of an organism is described as its?

A. phenotype B. genotype C. character D. chromosome E. allele Correct Answer: Option B - genotype

4 years ago

A pair of genes which controls a trait is described as?

A. dominant B. recessive C. allele D. variant E. hybrid Correct Answer: Option C - allele Explanation Alleles are pairs…

4 years ago

When gametes from pure breeding parents with contrasting features such as tallness and shortness are involved in monohybrid cross, the offspring in the first filial generation are usually

A. pure breed B. heterozygous dominant C. homozygous recessive D. mutants E. co-dominant Correct Answer: Option B - heterozygous dominant

4 years ago

Thrombocytes are blood cells responsible for initiating?

A. phagocytosis of bacteria B. synthesis of ribosomes C. clotting of the blood D. immunity to certain infectious diseases E.…

4 years ago