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CSS Botany QUESTION #1362
Question 1
Which of the following is NOT a characteristic of algae?
  • Autotrophic
  • Multicellular
  • Lack true roots, stems, and leaves
  • All algae are microscopic✔️
Correct Answer Explanation
Not all algae are microscopic — this is the FALSE statement. Giant kelp (Macrocystis pyrifera) can grow up to 60 metres long. Algae are autotrophic (mostly), lack true roots/stems/leaves (they have thallus), and can be unicellular or multicellular. The statement that 'all algae are microscopic' is incorrect.