The free floating organisms of an open sea and the shore are collectively called

Options

A. planktons
B. benthos
C. nektons
D. sea anemone.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the collective term for free-floating organisms found in the open sea and along the shore.

2. **Identifying the Options**: The options provided include:
- Planktons
- Benthos
- Nectones
- Sea Anemones

3. **Analyzing Each Option**:
- **Planktons**: These are small, free-floating organisms that can be found in both the open sea and along the shore. They include phytoplankton (which are photosynthetic) and zooplankton (which are small animals).
- **Benthos**: These organisms live on or in the bottom of the sea or ocean, not free-floating.
- **Nectones**: These are swimming organisms that inhabit the water column but are not classified as free-floating.
- **Sea Anemones**: These are attached to the sea floor and are not free-floating organisms.

4. **Conclusion**: Since planktons are the only group that includes free-floating organisms found in both the open sea and along the shore, the correct answer is **Planktons**.

5. **Final Answer**: The free-floating organisms of an open sea and the shore are collectively called **Planktons**.

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