Connecting link between plants and animals

Options

A. Paramecium
B. Euglena
C. Amoeba
D. Trypanosoma

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the organism that serves as a connecting link between plants and animals. This implies we are looking for an organism that exhibits characteristics of both groups.

2. **Analyzing the Options**:
- **Option 1: Paramecium**: This is a unicellular organism that is classified under the kingdom Protista. It primarily exhibits animal-like characteristics, such as movement and feeding behavior, but does not have plant-like features. Therefore, it is not the connecting link.

- **Option 2: Euglena**: This organism is also unicellular and belongs to the kingdom Protista. Euglena is unique because it has chloroplasts and can perform photosynthesis like plants, but it can also move and feed like animals. This dual capability makes Euglena the correct answer as the connecting link between plants and animals.

- **Option 3: Amoeba**: Similar to Paramecium, Amoeba is a unicellular organism that exhibits animal-like behavior, such as movement and feeding. It does not possess any plant-like characteristics, making it an incorrect choice.

- **Option 4: Trypanosoma**: This is a parasitic organism that causes diseases in humans and animals. It does not exhibit characteristics of plants and is therefore not a connecting link.

3. **Conclusion**: After analyzing all options, the only organism that exhibits both plant and animal characteristics is Euglena. Thus, the correct answer is **Option 2: Euglena**.

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