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Consider the following statements with r...

Consider the following statements with respect to reproduction in the lower living organisms
I. Organisms like Yeasf and Planaria reproduce asexually by means of budding
II. True regenration is observed in Hydra
III. Protonema of mosses multiply by fragmentation.
IV. In unicellular organisms like bacteria, algae and Amoeba, reproduction is synonymous with growth, i.e. increase in number of cells.

A

I and II are correct

B

II and III are correct

C

III and IV are correct

D

II and IV are correct

Text Solution

AI Generated Solution

The correct Answer is:
To determine the correctness of the statements regarding reproduction in lower living organisms, let's analyze each statement step by step. ### Step-by-Step Solution: 1. **Statement I**: "Organisms like Yeast and Planaria reproduce asexually by means of budding." - **Analysis**: Yeast does reproduce asexually by budding, but Planaria primarily reproduces asexually through regeneration, not budding. Therefore, this statement is **incorrect**. 2. **Statement II**: "True regeneration is observed in Hydra." - **Analysis**: Hydra reproduces asexually through budding, not true regeneration. True regeneration is the ability to regrow lost parts, which is not the primary method of reproduction in Hydra. Hence, this statement is **incorrect**. 3. **Statement III**: "Protonema of mosses multiply by fragmentation." - **Analysis**: This statement is **correct**. The protonema stage of mosses can indeed reproduce asexually through fragmentation, where parts of the protonema can grow into new individuals. 4. **Statement IV**: "In unicellular organisms like bacteria, algae, and Amoeba, reproduction is synonymous with growth, i.e., increase in the number of cells." - **Analysis**: This statement is also **correct**. In unicellular organisms, growth often leads to cell division, which results in the formation of new organisms. Therefore, reproduction and growth are closely linked in these organisms. ### Conclusion: - The correct statements are **III and IV**. - Therefore, the answer to the question is that statements III and IV are correct.
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