Mosaic disease affects

A. cotton and cocoa

B. groundnut and tomato

C. cassava and tobacco

D. mango and orange

The following are biting and chewing insects except

A. caterpillars

B. beetles

C. crickets

D. moths

Mealy bug is a major pest of

A. citus

B. cassava

C. maize

D. oil palm

Weeds which produce light and numerous seeds are normally dispersed by

A. wind

B. water

C. animals

D. insects

Which of the following effects is not a consequence of 'introduction' in crop improvement? Introduced crops

A. may mature faster than the local varieties

B. may have high yield

C. improve the quality of existing crops

D. hamper the growth of local varieties

In which part of the alimentary canal of poultry is grit mostly found?

A. proventriculus

B. cloaca

C. gizzard

D. rectum

Parturition in farm animals marks the end of

A. breeding

B. lactation

C. ovulation

D. gestation

A sow is normally expected to farrow

A. once a year

B. once in two years

C. twice a year

D. four times a year

High temperatures on livestock induces the following effects except

A. high feed intake

B. low productivity

C. high water intake

D. general body weakness

Rabbits are kept in cages called

A. pens

B. hutches

C. paddocks

D. crushes