Disease causing microbes spread through
A) Air
B) Water
C) Vectors
D) Above all
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Fill in the blanks with appropriate words. (i) Resistance to the most plants is the ability to prevent the pathogen from causing disease and is determ
Correct Answer - (i) Genetic constitution of the host plant (ii) Nectar less (iii) Rice
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Waste substances that can be degraded by microbes into harmless and non-toxic substances are
C) biodegradable waste
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What will happen if we use vaccines containing strong or potent disease causing microorganisms?
A) There are high chances of getting infected with the disease.
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The foot of buffalo effected with a disease, it can’t walk properly. What disease it would be?
(D) Hoof and mouth
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Disease-causing microorganisms are killed directly by consuming
(B) Antibiotics
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Many pathogenic microbes and large amounts of organic matter are found in sewage.
1. All solids that settle during primary treatment are called primary sludge. 2. During secondary treatment the effluent is passed into a settling tank where the bacterial ‘floes’ are allowed to...
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Do you think microbes can also be used as source of energy? If yes, How?
The microbes present in activated sludge are digested an aerobically to generate an inflammable bio gas or gobar gas which is used as source of energy.
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Give examples to prove that microbes release gases during metabolism.
1. Puffing up of dough, during making of dosa, idli or bread, is due to production of CO2 gas during the fermentation process. 2. Appearance of large holes in “swiss cheese”...
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Indications about a disease are given in the box. Identify the disease 1. Defects of genes cause deformities in the
Sickle cell Anaemia.
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The ability of host plant to prevent the pathogen from causing disease which is determined by genetic constitution of the host plant, is called
Correct Answer - D The ability of host plant to prevent the pathogen from causing disease which is determined by genetic constitution of the host plant, is called resistance.
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