Read the following statements and choose the correct option: 1. The algae reproduce by vegetative, asexual and sexual methods. 2. Vegetative reproduction is by spores. 3. Each fragment in vegetative reproduction develops into a thallus. 4. Zoospores are flagellated (motile) and on germination gives rise to new plants.

Step-by-step solution

The algae reproduce by vegetative, asexual and sexual methods. Vegetative reproduction is by fragmentation. Each fragment develops into a thallus. Asexual reproduction is by the production of different types of spores, the most common being the zoospores. They are flagellated (motile) and on germination gives rise to new plants.