Which one of the following is a correct statement?

Options

A. Fronds are found in Bryophytes.
B. Heterocysts are found in Nostoc
C. Diatoms produce basidiospores.
D. Multiciliated sperms are found in Angiosperms.

Answer

To determine the correct statement from the options provided, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Analyze the First Statement:**
- The statement claims that "fronds are found in Bryophytes."
- **Evaluation:** Fronds are actually leaf-like structures found in ferns, which are part of the Pteridophytes, not Bryophytes. Bryophytes, such as mosses, do not have true leaves or fronds.
- **Conclusion:** This statement is incorrect.

2. **Analyze the Second Statement:**
- The statement mentions "Heterocysts are found in Nostoc and Anabaena."
- **Evaluation:** Heterocysts are specialized cells found in certain cyanobacteria, including Nostoc and Anabaena, and they play a crucial role in nitrogen fixation.
- **Conclusion:** This statement is correct.

3. **Analyze the Third Statement:**
- The statement claims "Diatoms produce Basidiospores."
- **Evaluation:** Diatoms are a group of algae and do not produce basidiospores. Basidiospores are produced by fungi, specifically Basidiomycetes.
- **Conclusion:** This statement is incorrect.

4. **Analyze the Fourth Statement:**
- The statement says "Multicellulate sperms are found in angiosperms."
- **Evaluation:** Angiosperms (flowering plants) typically have male gametes (sperms) that are unicellular. They do not have multicellulate sperms.
- **Conclusion:** This statement is incorrect.

### Final Conclusion:
After analyzing all the statements, the only correct statement is the second one: "Heterocysts are found in Nostoc and Anabaena."