Waec Biology Past Questions For Year 2006
Question 36
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 37
Siphons and gills are structures in aquatic organisms used for
- A. gaseous exchange
- B. buoyancy
- C. excretion
- D. movement
Question 38
Which of the following organisms feeds both autotrophically and heterotrophically?
- A. Hydra
- B. Paramecium
- C. Mucor
- D. Euglena
Question 39
The examples of autotrophic organisms include the following except
- A. Euglena
- B. Chlamydomonas
- C. Hydra
- D. Spirogyra
Question 40
Which of the following statements about feeding relationships is correct?
- A. In a food web on land, grasshopper feeds on praying mantis and on predator bugs
- B. In a food chain on land, green plant is the producer
- C. In an aquatic food chain mollusc larvae are the producers
- D. In an aquatic food web, various copepods feed on mollusk Larvae and on sand eel
