Viscum is

A

Total stem parasite

B

Total root parasite

C

Partial stem parasite

D

Partial root parasite

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Viscum**: Viscum, specifically Viscum album, is a type of plant commonly known as mistletoe. 2. **Identifying its Parasitic Nature**: Viscum is categorized as a hemiparasite. This means it has characteristics of both a parasite and a photosynthetic plant. 3. **Photosynthesis Capability**: Unlike total parasites, Viscum can perform photosynthesis, which allows it to produce some of its own food. However, it still relies on other plants for certain nutrients. 4. **Nutrient Acquisition**: Viscum attaches itself to the stems of host trees to draw water and nutrients. This dependence on host trees is what classifies it as a partial stem parasite. 5. **Conclusion**: Therefore, the correct classification of Viscum is that it is a **partial stem parasite**.
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