Question

Cuscuta is an example of

• A. ectoparasitism
• B. brood parasitism
• C. predation
• D. endoparasitism

Answer 1

The Correct Option is A

Question: Cuscuta is an example of?

Let's analyze the options to understand which type of parasitism Cuscuta belongs to:

1. Ectoparasitism: Cuscuta, commonly known as dodder, is a parasitic plant that attaches itself to the host plant's external structure—typically the stems. It lacks chlorophyll and relies entirely on the host plant for nutrients by using specialized structures, known as haustoria, to penetrate the host’s tissue.
2. Brood Parasitism: This type involves organisms like certain birds laying their eggs in the nests of other species, leaving those hosts to provide care for their young. This is not applicable to Cuscuta.
3. Predation: Predation involves one organism killing and consuming another. Cuscuta does not kill its host; rather, it extracts nutrients while the host remains alive.
4. Endoparasitism: This occurs when the parasite lives inside the host's body (e.g., tapeworms inside an animal's digestive system). Cuscuta does not live inside its host; it attaches externally.

From the explanation above, it is evident that Cuscuta is an example of ectoparasitism, as it lives on the surface of the host plant and derives its nutrition from it.

Conclusion: The correct answer is ectoparasitism.