CURRENT AFFAIRS

Detailed explanation-1: -Tiny cells called zooxanthellae live within most types of coral polyps . They help the coral survive by providing it with food resulting from photosynthesis.

Detailed explanation-2: -Microalgae or microphytes are microscopic algae invisible to the naked eye. They are phytoplankton typically found in freshwater and marine systems, living in both the water column and sediment. They are unicellular species which exist individually, or in chains or groups.

Detailed explanation-3: -These microalgae cannot be classified as plants, fungi, animals or bacteria. So they come under a separate kingdom called Protista. Example – Chlorella, Diatoms, Dinoflagellates, etc.

Detailed explanation-4: -Scientists have found macroalgae (seaweed) can help protect some corals from bleaching, and the removal of the canopy-forming seaweed should be carefully timed to help coral reefs thrive.

Detailed explanation-5: -Just as we humans have beneficial bacteria living on our skin and in our intestines, corals also have co-habitating non-pathogenic (not disease-causing) microbes. These microbes include bacteria, archaea, and fungi-representing all three of the major domains of life.