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I. Instead of a cell wall they have a pr...

I. Instead of a cell wall they have a protein rich pellicle making their body flexible
II. They have 2 flagella, a short and a long one
III. They have mixotrophic nutrition
IV. In light they are photosynthetic, but act as heterotroph (predating other smaller organism) when they are in dark.
V. They are connecting link between plants and animals.
The above statements are assigned to-

A

Dinoflagellates

B

Slime mould

C

Desmids and Diatoms

D

Euglena

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the statements provided and identify the organism that fits all the characteristics described. **Step 1: Analyze the characteristics** - The first statement mentions a "protein-rich pellicle" instead of a cell wall, which suggests flexibility in the organism's structure. - The second statement indicates the presence of two flagella, one short and one long, which is a characteristic of certain protists. - The third statement describes "mixotrophic nutrition," which means the organism can obtain energy through both photosynthesis and heterotrophy. - The fourth statement reinforces the mixotrophic nature by stating that the organism is photosynthetic in light but can also act as a heterotroph in the dark. - The fifth statement mentions that this organism serves as a connecting link between plants and animals. **Step 2: Identify the organism** Based on the characteristics described: - The presence of a pellicle and two flagella points towards **dinoflagellates**. - Their ability to perform photosynthesis and also consume other organisms when in the dark aligns with the definition of mixotrophic nutrition. - The fact that they are considered a connecting link between plants and animals is also a well-known characteristic of dinoflagellates. **Conclusion:** The statements provided are assigned to **dinoflagellates**. ---
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