2008 - WAEC Biology Past Questions and Answers - page 5

Many diseases caused by bacteria can be treated and cured by using

To avoid over fishing in a lake, the following measures may be helpful except

Conservation may be promote by

Which of the following substances is not recycled in an ecosystem?

Which of the following statements about phenylthiocarbamide (PTC) is not correct?

Which of the following characters is not an example of discontinuous variation?

Which of the following human traits in a class of school children may give an approximate normal distribution curve when the variation is plotted?

The observable characteristics of an individual usually resulting from the interaction between the gene composition and the environment is referred to as

The sudden change in a gene structure or chromosome number in an organism likely to cause an inheritable change in the phenotype is known as

The effective cells involved in sickle-cell anaemia disease are