1) Produce their own food using inorganic materials from the environment a) Autotrophs b) Heterotrophs 2) Organism that serves as a primary producers in food chain a) Heterotrophs b) Autotrophs 3) Eat other organisms in order to obtain energy a) Autotrophs b) Heterotrophs 4) Group of living organisms categorized based on the carbon source a) Heterotrophs b) Autotrophs c) Both 5) Single-celled microorganisms and the oldest on the planet a) Prokaryotic cell  b) Eukaryotic cell 6) Doesn't have nucleus a) Prokaryotic cell b) Eukaryotic cell 7) Not allowing to regulate harvesting  a) Outer Membrane b) Thykaloids c) Granum 8) Breaks down and recycles cellular waste a) Membrane b) Enzymes c) Stroma 9) A hollow passageway through which blood flows a) Cicsternae b) Lumen c) Cell 10) Mostly multicellular organisms a) Prokaryotic cell b) Eukaryotic cell

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