Question

Water in a pond appears dark green and contains filamentous structures. Name these structures and the method by which they reproduce. Explain the process.

Hint:

Green algae like Spirogyra use fragmentation for rapid reproduction in aquatic environments.

Answer 1

Filamentous Structures: The filamentous structures present in the water are green algae (e.g., Spirogyra). 
Reproduction: These green algae reproduce by fragmentation, which is a form of asexual reproduction. The filaments break into smaller pieces (fragments), and each fragment can grow into a new organism, thus increasing the population. 
Explanation of the process: Fragmentation is a type of vegetative reproduction where each broken part of the organism can regenerate into a whole new individual. It helps in the rapid multiplication of algae in favorable conditions.