Which one single organism or the pair of organisms is correctly group?

Options

A. Lichen is a composite organsim formed from the symbiotic association of analgae and a protozoan
B. Yeast used in making bread and beer is a fungus
C. Nostoc and Anabaena are examples of Protista
D. Paramecium and plasmodium belong to the same kingdom as that of Penicillum

Answer

To solve the question regarding which organism or pair of organisms is correctly grouped, we will analyze each statement provided in the question step by step.

### Step-by-Step Solution:

1. **Analyze the First Statement:**
- The statement claims that "lichen is a composite organism formed from the symbiotic association of an algae and a protozoan."
- **Evaluation:** This statement is incorrect. Lichens are indeed composite organisms, but they are formed from the symbiotic association of fungi and algae, not protozoans.

2. **Analyze the Second Statement:**
- The statement claims that "yeast used in making bread and beer is a fungus."
- **Evaluation:** This statement is correct. Yeast is a type of fungus and is widely used in fermentation processes, including baking bread and brewing beer.

3. **Analyze the Third Statement:**
- The statement claims that "Nostoc and Anabaena are examples of protista."
- **Evaluation:** This statement is incorrect. Nostoc and Anabaena are actually classified under cyanobacteria, not protista.

4. **Analyze the Fourth Statement:**
- The statement claims that "Paramecium and Plasmodium belong to the same kingdom that is Penicillium."
- **Evaluation:** This statement is incorrect. Paramecium and Plasmodium belong to the kingdom Protista, while Penicillium is a genus of fungi, not a kingdom.

5. **Conclusion:**
- After evaluating all statements, the only correct grouping is found in the second statement regarding yeast being a fungus. Therefore, the correct answer is the second statement.

### Final Answer:
The correctly grouped organism is the second statement: "Yeast used in making bread and beer is a fungus."

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