Waec Biology 2015 Past Questions and Answers

Question 21:

• WAEC 2015

A community reaches a climax when

A. Only pioneer organisms are present
B. New habitats are constantly being formed
C. There is an introduction of new plants and animal species within the community
D. The composition and size of a community remains constant over a long period

Question 22:

• WAEC 2015

Which of the following components make up an ecosystem?

A. Decomposers, animals and non-living factors
B. Living and non-living factors
C. Plants and non-living factors
D. Plants decomposers and non-living factors

Question 23:

• WAEC 2015

Study the diagram above and answer the question
The structure labelled I is

A. A pitcher
B. An onion
C. A flower
D. A tendril

Question 24:

• WAEC 2015

Which of the following organisms is an endo-parasite?

A. Tapeworm
B. Flea
C. Tick
D. Aphid

Question 25:

• WAEC 2015

Which of the following organisms is an endo-parasite?

A. Tapeworm
B. Flea
C. Tick
D. Aphid