Waec Agricultural Science 2009 Past Questions and Answers

Question 36:

• WAEC 2009

The twisting, wrinkling and mottling of leaves are symptoms of

A. Nematode attack
B. Viral diseases
C. Water deprivation
D. Fungal attack

Question 37:

• WAEC 2009

An example of biological control of pests is

A. Using lady bird beetles to feed on cytoplasm
B. Early planting of maize
C. Harvesting maize when properly dried
D. Soaking bean seeds in bordeaux mixture

Question 38:

• WAEC 2009

Edible seeds with sticky covering and hooks are most likely to be dispersed by

A. Wind
B. Water
C. Animal
D. Explosion

Question 39:

• WAEC 2009

Hereditary characteristics are passed from parents to offspring through the

A. Cytoplasm
B. Placenta
C. Gene
D. Umbilical cord

Question 40:

• WAEC 2009

Embryonic membranes do not include

A. Uterus
B. Chorion
C. Allantois
D. Amnion