Newcastle disease is caused by
...Newcastle disease is caused by
Virus
Bacterium
Protozoan
Fungus
Correct answer is A
No explanation has been provided for this answer.
The reproductive process illustrated by the diagram is ...
The most important advantage of in-breeding is that ...
Which of the following practices will improve clay soil? ...
Temperature is an important factor which is monitored in fish ponds because ...
The function of the seed -tube of a seed drill is to ...
The causative organism of Avian influenza is a ...
Which of the following weeds is dispersed by wind? ...