Essential Cell Biology (Ch. 1-4) Flashcards Questions and Answers 2023

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Living systems are incredibly diverse in size, shape, environment, and behavior. It is estimated that there are between 10 million and 100 million different species. Despite this wide variety of organ... isms, it remains difficult to define what it means to say something is alive. Which of the following can be described as the smallest living organism? A) DNA B) cell C) organelle D) protein - -B -Indicate whether the following statements are true or false. If the statement is false, explain why it is false. A. The paramecium is a multicellular microorganism covered with hairlike cilia. B. Cells of different types can have different chemical requirements. C. The branchlike extensions that sprout from a single nerve cell in a mammalian brain can extend over several hundred micrometers. - -A) False. The paramecium is a single-celled organism. [Show More]

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