Euglena has both holophytic and saprobic nutrition. The nutrition is called

Options

A. Saprophytic
B. Mixotrophic
C. Holo-saprotrophic
D. Chemoheterotropic

Answer

**Step-by-Step Solution:**

1. **Understanding the Nutrition Types**:
- Euglena exhibits two types of nutrition: holophytic and saprobic.
- Holophytic nutrition refers to organisms that can produce their own food through photosynthesis.
- Saprobic nutrition refers to organisms that obtain nutrients by feeding on dead and decaying organic matter.

2. **Identifying the Combination**:
- Since Euglena can perform both types of nutrition, it does not fit into a single category. Instead, it combines these two nutritional modes.

3. **Defining Mixotrophic Nutrition**:
- The term that describes organisms that can utilize more than one method of obtaining nutrition is called "mixotrophic."
- Mixotrophic organisms can perform photosynthesis (like holophytic organisms) and also absorb nutrients from their environment (like saprobic organisms).

4. **Evaluating Other Options**:
- The other options given (saprophytic, holoseprophytic, and chemoheterotrophic) do not accurately describe Euglena's nutritional capabilities:
- Saprophytic refers only to organisms that feed on dead matter.
- Holoseprophytic is not a standard term used in biology.
- Chemoheterotrophic refers to organisms that obtain energy through chemical means, typically from organic compounds, which does not apply to Euglena.

5. **Conclusion**:
- Therefore, the correct classification for Euglena's nutrition, which includes both holophytic and saprobic modes, is "mixotrophic."

**Final Answer**: The nutrition of Euglena is called mixotrophic.

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