Blood is red but without RBCs. Such blood is found in

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question states that there is blood that is red in color but does not contain red blood cells (RBCs). We need to identify which organism has such blood.

2. **Identifying the Key Characteristics**: The key characteristics to note are:
- The blood is red.
- It lacks red blood cells (RBCs).

3. **Analyzing the Function of RBCs**: In most organisms, red blood cells are responsible for carrying oxygen and are red due to the presence of hemoglobin, a pigment that binds oxygen.

4. **Considering Earthworms**: Earthworms are known to have a unique circulatory system. Instead of having RBCs, their blood contains hemoglobin dissolved in the plasma.

5. **Conclusion**: Since earthworms have blood that is red due to the presence of hemoglobin in the plasma rather than in RBCs, the answer to the question is that such blood is found in earthworms.

**Final Answer**: Blood that is red but without RBCs is found in earthworms.

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