Interactive exercise. Assistance may be required. Read the following descriptions and determine what type of relationship is being described.

MISTLETOE: symbiotic relationship between mistletoe and tree to which it is attached.

  • Mistletoe gets food and water from the tree.
  • Tree looses food and water that it needs and eventually will die.
 photo of mistletoe on tree Interactive popup. Assistance may be required.

Check Your Answer

ParasitismClose Pop Up

MITES ON AFRICAN HISSING COCKROACHES: symbiotic relationship between mites and roaches.

  • Mites get free food by hanging out with roaches.
  • Roaches are not affected by presence of mites.
 photo of african hissing cockroach Interactive popup. Assistance may be required.

Check Your Answer

CommensalismClose Pop Up

MILLIPEDES: symbiotic relationship between protozoans that live in the intestines of the millipede and the millipede.

  • Protozoans get food from the millipede.
  • Millipede gets help with breaking down cellulose in the foods that it eats.
  • Both benefit.
 photo: millipede
photo: protozoan		 Interactive popup. Assistance may be required.

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MutualismClose Pop Up

LION AND ZEBRA:

  • Lions hunt and feed on zebra.
photo: lion feeding on zebra Interactive popup. Assistance may be required.

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PredationClose Pop Up

Sources for images used in this section as they appear, from top to bottom: