Waec Biology 2006 Past Questions and Answers

Question 36:

• WAEC 2006

The examples of autotrophic organisms include the following except

A. Euglena
B. Chlamydomonas
C. Hydra
D. Spirogyra

Question 37:

• WAEC 2006

Which of the following organisms feeds both autotrophically and heterotrophically?

A. Hydra
B. Paramecium
C. Mucor
D. Euglena

Question 38:

• WAEC 2006

Siphons and gills are structures in aquatic organisms used for

A. Gaseous exchange
B. Buoyancy
C. Excretion
D. Movement

Question 39:

• WAEC 2006

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

A. Quadrat sampling
B. Mapping the area
C. Collection of organisms
D. Measuring abiotic factors

Question 40:

• WAEC 2006

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

A. Producers
B. Consumers
C. Micro-organisms
D. Habitat