Answer:
Autotrophic
nutrition
Heterotrophic
nutrition
1.
The organisms that make their own food from simple inorganic substances are
called autotrophs, e.g., most green plants. Therefore, autotrophic
nutrition refers to the process of nourishing, namely photosynthesis, that
they adopt for growth and maintenance.
2.
The raw materials required for preparation of food are CO2 and H2O.
3.
Chlorophyll and sunlight are essential for photosynthesis and thus nutrition
to occur.
1.
The organisms which cannot make their own food and depend directly or indirectly
on autotrophs for their survival are called heterotrophs, e.g., animals
and fungi. Heterotrophic nutrition refers to the process of nourishing,
namely by obtaining food from other organisms, for their own growth and
maintenance.
2.
Heterotrophs are directly or indirectly dependent on autotrophs.
3.
Chlorophyll and sunlight are not required.
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