Waec Biology Past Questions and Answers

Question 1841:

• 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

Question 1842:

• WAEC 1988

Which of the following is not true about gene mutation? It

A. Introduces new traits into a population
B. Causes changes in the DNA
C. May have unnoticeable effect on the phenotype
D. Always affects the chromosome number
E. Is a source of new genes

Question 1843:

• WAEC 1988

The plants best adapted for life in the desert are

A. I and IV only
B. II and IV only
C. Ill and IV only
D. LV and V only
E. I Il Ill and V

Question 1844:

• WAEC 1988

The rate of transportation will be highest In

A. I
B. II
C. III
D. IV
E. V

Question 1845:

• WAEC 1988

Which of the following has the most primitive respiratory system?

A. Rat
B. Fish
C. Toad
D. Grasshopper
E. Lizard