Symbolic relationships

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Symbolic relationships

• Symbolic relationships are
• Relationships that can effect its
• Partner. There are three types of symbolic
  relationships. Mutualism, commensalism, and
• Parasitism.

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mutualism

• Mutualism is the symbolic relationship where two
  organisms live or benefit one another. An example
  would be termites and intestinal flagellates

Although termites can physically chew and ingest
wood, they are incapable of chemically digesting
cellulose into sugars. They rely on intestinal
flagellates, spp. which are capable of producing
cellulose. These genera of flagellates reside in
the hindgut of termites and provide nutrition for
them. They are not found anywhere else in
nature. When a termite molts, it loses its
hindgut and therefore loses its population of
flagellates. It reinfects itself by ingesting
its (or some other termites) hindgut that has
been eliminated.
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commensalism

• Commensalism is a symbolic relationship where
  unlike mutualism Commensalism is where one
  organism lives with the other but neither
  Organism effects the other. An example would be
  like when barnacles attach to the side of a whale
  or mollusk. A mollusk is a marine animal that may
  have a shell but has a soft vulnerable body, like
  a clam or oyster.
• This picture shows a moray eel hunting its prey
  while the shrimp is picking up the scraps.

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Parasitism

• Parasitism is a symbolic relationship where one
  benefits from the other. An example would be
  active trophazites that live in the lower
  intestine. Some parasites are large worms that
  feed off the blood and nutrients in the large
  intestine.

A trophozoite (is the activated, feeding stage in
the life cycle of protozoan parasites such as the
malaria-causing Plasmodium falciparum (the
opposite of the trophozoite state is the
thick-walled cyst form). The trophozoite
undergoes (reproduction) and develops into a
schizont which contains merozoites. Another type
of Balantidium coli is cysts.
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Down on the left is a picture of active
trophaziots.

A trophozoite (is the activated, feeding stage in
the life cycle of protozoan parasites such as the
malaria-causing Plasmodium falciparum (the
opposite of the trophozoite state is the
thick-walled cyst form). The trophozoite
undergoes (reproduction) and develops into a
schizont which contains merozoites. Another type
of Balantidium coli is cysts.
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