1989 WAEC SSCE Biology Past Questions

1989

The greatest concentration of light receptors is found in the part labelled

1989

The light - sensitive layer is labelled

1989

Which of the following organisms is at the tissue level of organization?

1989

The bone that articulates with the part labelled III is the

1989

The translocation of food materials in plants takes place in the

1989

A dehiscent fruit formed from several fused carpels with many seeds is classified as

1989

Which of the following is not an adaptation of the small intestine for absorption of digested food? The

1989

In photosynthesis, the following processes are part of the light reactionExcept

1989

Autotrophs are also described as

1989

Pests can be controlled without the subsequent danger of polluting the ecosystem by

1989

Which of the following statements is not correct about the ecological effects of agricultural activities?

1989

Which of the following statements is not correct about food chains?

1989

An association between living organisms in which one lives on and feeds at the expense of the otherOrganism is known as

1989

Which of the following is not an effect of overcrowding on a population?

1989

Maize is best stored against insect attack

1989

Which of the following methods is used in food preservation for a long period?

1989

Which of the following. groups of organisms feeds directly on green plants?

1989

The activities of an organism which affect the survival of another organism in a habitat can be described as

1989

All hereditary characters in a cell are passed on from parent-cell to daughter-cell through the process of

1989

Which of the following represents the phenotypic ratio, when a plant Rr is crossed with another plant Rr,Assuming that the gene R for round seed is dominant and wrinkled r is recessive?

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