Parasite

A parasite is an organism that lives in or on the living tissue of a host organism at the expense of it. The biological interaction between the host and the parasite is called parasitism. Comfortable register web address research

Parasites are generally smaller than their hosts, absorbing nutrients from the host's body fluids, but this is far from a universal strategy.

Examples

• Endoparasites (endo = within; parasites that live inside their hosts)
  • Plants
    • Rafflesia
  • Animals
    • Acanthocephala
    • Enterobius vermicularis
    • Strepsiptera
    • Strongyloides stercoralis
  • Fungi
    • Gymnosporangium and other rusts
• Ectoparasites (ecto = outside; parasites that live on but not within their hosts, for example, attached to their skin)
  • Plants
    • Cuscuta
    • Mistletoe
    • Toothwort
  • Animals
    • Phthiraptera

Many lifeforms are parasitic only during a part of their lifecycle. Many cuckoos, for example, are brood parasites: their young are parasitic on the host species, but adult cuckoos fend for themselves.

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