Multiple choice general knowledge science & technology

Which one of the following is a total stem parasite

  1. Cuscuta

  2. Drosera

  3. Viscuxn

  4. Vanda
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A Correct answer
Explanation

Cuscuta (dodder) is a complete stem parasite that lacks chlorophyll and doesn't produce its own food - it derives all water and nutrients from the host plant through haustoria that penetrate the host's stem. Drosera is an insectivorous plant, Viscum is a hemi-parasite (has some chlorophyll), and Vanda is an autotrophic orchid.

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