What is common for Cuscuta,ticks and leeches ?

Explanation

### Step-by-Step Solution:

1. **Identify the Organisms**: The question asks about Cuscuta, ticks, and leeches. First, we need to recognize what these organisms are.

2. **Define Parasitism**: Understand that Cuscuta, ticks, and leeches are all examples of parasites. A parasite is an organism that lives on or in a host organism and gets its food at the expense of its host.

3. **Mode of Nutrition**: All three organisms exhibit a parasitic heterotrophic mode of nutrition. This means they obtain their nutrients by feeding on another living organism (the host).

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