Coral Reef Crossword Puzzle

QUESTIONS LIST:

• algae : tiny organisms living inside corals that provide food through photosynthesis.
• parrotfish : a reef fish that eats algae and helps keep corals healthy.
• polyp : the tiny animal that forms part of a coral colony.
• sea star : an echinoderm that moves using tube feet.
• sponge : a filter-feeding animal that cleans seawater as it feeds.
• reef : a diverse underwater ecosystem built by corals.
• symbiosis : the beneficial relationship between corals and the algae living inside them.
• bleaching : what happens when corals lose their algae and turn white.
• coral : a colony of tiny marine animals that builds reefs from limestone skeletons.
• plankton : tiny drifting organisms eaten by many marine animals.