Regents Prep: Living Environment
Multiple-Choice Questions
  Question 4 of 5   Population Diversity
The presence of cilia, an oral groove, and food vacuoles, and the absence of chloroplasts in a unicellular organism indicate that the organism carries on


 1.  sexual reproduction

 2.  autotrophic nutrition

 3.  extracellular digestion

 4.  heterotrophic nutrition

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