Which group of organisms does not depend upon obtaining preformed organic molecules from the environment for nutrition

Algae is a group of organisms does not depend upon obtaining performed organic molecules from the environment for nutrition.

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Davinia.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.