Cuscuta is an example of a

Options

A. (a) heteroparasite
B. (b) holoparasite
C. (c) root parasite
D. (d) semiparasite

Answer

**Step-by-Step Solution:**

1. **Identify Cuscuta**: Cuscuta, commonly known as the dodder plant, is a parasitic plant that wraps around the stems of host plants. It has a distinctive appearance with pink and yellow stems and flowers.

2. **Understand the Nature of Cuscuta**: Cuscuta is a type of parasite. It does not perform photosynthesis and relies entirely on its host for nutrients and sustenance.

3. **Classify the Type of Parasite**:
- **Heteroparasite**: This term refers to organisms that obtain food from other organisms, but it does not accurately describe Cuscuta since it is specifically dependent on a host.
- **Holoparasite**: This is a more accurate classification for Cuscuta, as it derives all of its nutrients from its host throughout its entire life cycle. It cannot survive without a host.
- **Root Parasite**: Cuscuta does not attach to the roots of plants; instead, it attaches to the stems, making this classification incorrect.
- **Semiparasite**: Semiparasites can perform photosynthesis to some extent and are only partially dependent on their host. Cuscuta, however, is fully dependent on its host for survival.

4. **Conclusion**: Based on the classifications discussed, Cuscuta is best described as a **holoparasite** because it cannot complete its life cycle without the presence of a host plant.

**Final Answer**: Cuscuta is an example of a **holoparasite**.

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