2006 - WAEC Biology Past Questions and Answers - page 4

Study the following list of deficiency symptoms in animals; use it to answer the questions below
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV Sterility in animals
V Failure of blood to clot; VI. Night blindness
Which of the following combination of food substances would correct the deficiency numbered II?

Which of the following food substances would produce a translucent mark when rubbed on a white paper?

If an enzyme works best in an acid medium, in which of the following parts of the human gut is the pH best for
enzyme activities? In the

Which of the following organisms is not considered as a parasitic plant?

The examples of autotrophic organisms include the following except

Which of the following organisms feeds both autotrophically and heterotrophically?

Siphons and gills are structures in aquatic organisms used for

The first step in carrying out ecological studies in a terrestrial habitat is

Which of the following components of an ecosystem does not contribute to the biomass of the system?

The group of several populations that interact and share a habitat, form