Which of the following is not a biotic factor affecting a...
Which of the following is not a biotic factor affecting agricultural production?
Predator
Soil
Parasites
Pest
Dieases
Correct answer is B
No explanation has been provided for this answer.
Crop rotation decreases the incidence of pests by ...
The mosaic symptom commonly associated with viral diseases of crops can be best observed on ...
Which of the following groups of organisms cause the greatest damage to stored grains? ...
The following are examples of natural mating methods except ...
A fish pond in an enclosed body of water is for ...
Disease of animals that can also be transferred to humans are ...
Sexual propagation involves the use of ...
The removal of excess seedlings from a seedbed after the viable seeds have germinated is ...