Waec Biology 1988 Past Questions and Answers

Question 46:

• WAEC 1988

A man with blood group A (T^AP) married a woman with blood group O (pp). Which of the following is the
probable ratio of the blood groups of the offspring?

A. 1:1
B. 3:1
C. 2:1:1
D. 1:2:1
E. 4:1

Question 47:

• WAEC 1988

Increasing specialization of structure and function among animals of the same class and order for survival in new and different environments is called

A. Adaptive radiation
B. Phylogeny
C. Homology
D. Analogy
E. Ontogeny

Question 48:

• WAEC 1988

When large numbers of organisms share limited space and resources the result is

A. Immigration
B. Commensalism
C. Symbiosis
D. Extinction
E. Competition

Question 49:

• WAEC 1988

The change in colour of the chameleon serves as a means of

A. Attraction to the opposite sex
B. Repulsion of the enemy
C. A camouflage from a predator
D. Regulation of body temperature
E. . production of a variety of skin pigments

Question 50:

• WAEC 1988

Species can be defined as the group of organisms that

A. Resemble each other and live in the same habitat
B. Are of common origin and are always found together
C. Resemble each other and can interbreed freely
D. Resemble each other and occupy the same niche
E. Are of common origin but cannot interbreed freely