symptoms of contributary causes of a disease
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For example, virus, bacteria, protozoa etc. Contributory cause: The secondary factors which led these organisms enter our body are called as contributory cause. For example, dirty water, contaminated food, improper ourishment, poor standard of living etc.
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Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because
(a) Nodes are shorter than intemodes
(b) Nodes have meristematic cells
(c) Nodes are located near the soil
(d) Nodes have non-photosynthetic cells
Explanation:
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