Waec Biology 1996 Past Questions and Answers

Question 56:

• WAEC 1996

Which of the following is a social insect?

A. Mosquito
B. Butterfly
C. Honey bee
D. Grasshopper
E. Cockroach

Question 57:

• WAEC 1996

The phenomenon whereby some organisms get established in an environment after struggling for existence
by taking advantage of some special features possessed by the organism is called

A. Partial selection
B. Artificial selection
C. Natural selection
D. Mutation
E. Competition

Question 58:

• WAEC 1996

The statements below are about evolution of species
I. Members of a species vary ll. Organisms produce many offspring lll. The mechanism of evolution is
inheritance of acquired characters IV. Changes in the phenotype is brought about by the individual itself
Which of the statement(s) is/are related to the Darwin’s theory of evolution?

A. I only
B. II only
C. I, II and IV
D. I and II only
E. II and IV only

Question 59:

• WAEC 1996

Which of the following fields of study may not yield strong evidence of evolution?

A. Fossil
B. Histology
C. Ecology
D. Genetics
E. Cytology

Question 60:

• WAEC 1996

(a) State two advantages of complex structural organisation in higher organisms.
(b) (i) List two differences between colonial organisms and filamentous organisms.
(ii) Give one example each of a colonial organisms and a eke filamentous
(c) Make a labelled diagram 10 - 12 cm long to show the structure of a named filamentous alga.
.