Question

what type of algae has the greatest number of species?brownblueredgreenare the most productive phytoplankton. mangrovesdinoflagellatessporesdiatomsare planktonic, unicellular organisms. *daitomsangiospermsdinoflagellatesspores

Explanation:

• For the first question: Green algae (Chlorophyta) have the greatest number of species among algae. They are diverse in forms and habitats.
• For the second question: Diatoms are the most productive phytoplankton. They have a unique silica - based cell wall and are important primary producers in aquatic ecosystems.
• For the third question: Dinoflagellates are planktonic, unicellular organisms. They can be photosynthetic or heterotrophic and are known for their flagella which help in movement.

Answer:

1. Green
2. Diatoms
3. Dinoflagellates