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4)Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair.
Respiration is necessary for an organism to survive. Respiration plays the following roles in living organisms; Cellular respiration provides plants with the energy they need to carry out various functions
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Autotrophic nutrition is a mode of nutrition in which an organism prepares its own food with the help of simple inorganic materials like water and carbon dioxide from the surrounding. ... Heterotrophs rely on other organisms for their food whereas autotrophs are independent of any organisms.
6) this answer attached in picture
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