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...Biology books study package for ntse diversity in living organisms elementary questions algae can be described as a autotrophic and photosynthetic b chemosynthetic c heterotrophic d answer view text solution other submerged green plants often float water during daytime sink at night they lose weight because fish animals eat away their parts become buoyant due to accumulation of oxygen result photosynthesis light consumption food the come up enjoy sunlight most live fresh deep seas rocky coasts hot springs are important good experiment with grown large tank cultures may form constituents human future produce organic acids classification is based upon nature sex organs pigments spores all above called phycology mycology dendrology physiology pyrenoid found one following on spirogyra nucleolus cytoplasm chloroplast vacuole bubbles gases support masses floating pond gas air carbon dioxide ethane fusion between gametes unequal sizes isogamy oogamy anisogamy...