Assertion: several nematodes parasitiese a wide variety of plants and animals including human being
Reason: Ascariasis filariasis and taeniasis are some of the diseases caused by nematodes

Several nematodes parasitise a wide variety of plants and animals including ______ . A nematode Meloidegyne incognitia infects the ______ of tobacco plants and causes a great reduction in yield :

Several nematodes parasitise a wide variety of plants and animals including ______ . A nematode Meloidegyne incognitia infects the ______ of tobacco plants and causes a great reduction in yield :

Viruses cause several diseases in plants and animals. In plants, the symptoms can be

Name any three plant, animal and human diseases caused by viruses

Assertion Cholesterol is one of the most important steroid in animals and human beings Reason It is presnet as a compontent of animals cell walls and acts as an agnet of cell wal extension

Mention some microorganisms which cause diseases in human, plants and other animals.