Animal characters in Euglena are

Options

A. presence of pellicle which is made up of proteins and not of cellulose
B. presence of photosenstitive structures and contractile vacuole
C. presence of longitudinal binary fission
D. all of the above

Answer

### Step-by-Step Solution

1. **Understanding Euglena**:
- Euglena is a genus of single-celled organisms that are classified as flagellates. They are known for having both plant-like and animal-like characteristics.

2. **Identifying Animal Characteristics**:
- The question asks for the animal characters in Euglena. We need to analyze the options provided to determine which ones are true.

3. **Evaluating the Options**:
- **Option A**: Presence of pellicle made of proteins, not cellulose.
- This is true. The pellicle provides structure and is indeed made of proteins.
- **Option B**: Presence of photosensitive structures and contractile vacuole.
- This is also true. Euglena has a stigma (eyespot) that is sensitive to light and a contractile vacuole for osmoregulation.
- **Option C**: Presence of longitudinal binary fission.
- This is true as well. Euglena reproduces asexually through binary fission.
- **Option D**: All of the above.
- Since all the previous options are true, this option is also correct.

4. **Conclusion**:
- Since all the options correctly describe the animal characteristics of Euglena, the correct answer is **Option D: All of the above**.