Waec Biology 2006 Past Questions and Answers

Question 41:

• WAEC 2006

The group of several populations that interact and share a habitat, form

A. A species
B. A community
C. An ecotype
D. A tribe

Question 42:

• WAEC 2006

The physical and chemical factors which affect the life of organisms in an environment are described as

A. Biotic
B. Edaphic
C. Abiotic
D. Physiographic

Question 43:

• WAEC 2006

Which of these factors are common to both aquatic and terrestrial habitats?

A. Light, rainfall and turbidity
B. Light, temperature and tide
C. Light, rainfall and temperature
D. Rainfall, turbidity and salinity

Question 44:

• WAEC 2006

Organisms that feed essentially on plants within any ecosystem may be referred to as

A. Carnivores
B. Herbivores
C. Saprophytes
D. Omnivores

Question 45:

• WAEC 2006

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