Multiple choice

Which among the following statements regarding hornworts is incorrect?

  1. The plant body of a hornwort is a diploid gametophyte stage.

  2. Many hornworts develop internal mucilage-filled cavities when groups of cells break down.

  3. The horn-shaped sporophyte grows from an archegonium.

  4. The pseudo-elaters are multicellular.

  5. The spores are polar.
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A Correct answer
Explanation

The plant body of a hornwort is a haploid gametophyte stage. This stage usually grows as a thin rosette or ribbon-like thallus between one and five centimeters in diameter.

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