Advantage and limitations of parasitic lifestyle
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Advantages and Disadvantages of Parasitism
The host of a parasite gets no advantages. If it did, then the relationship would be mutualistic not parasitic. If one gets advantage and the other is relatively unaffected then the relationship is commensal. Some plants are parasitic (i.e. Mistletoe) and other plants are parasitized.
Many human diseases are caused by parasites (malaria, sleeping sickness etc) so this is clearly a disadvantage but humans can use parasites to their benefit. Many biological controls involve the use of parasites. In short, a parasite is a disadvantage to its host but may play a number of other roles within the ecosystem.
Many parasites cause harmful effects on their host. Such effects comprise:
WastingAllergic reactionsMechanical damageIrritative reflexes (intestinal contractions: ascaris)
To conclude about parasitism, it is evident that parasitism has very little to offer in terms of benefits. But yes, It helps maintain biodiversity in the ecosystem and controls the population to a large extent. Parasite-host interactions may be important at times. For example, such as parasitoids controlling the body temperatures of their hosts in order to ensure the survival of their offspring, and host choice in fleas being controlled by the off-host environment
Advantages and Disadvantages of Parasitism
The host of a parasite gets no advantages. If it did, then the relationship would be mutualistic not parasitic. If one gets advantage and the other is relatively unaffected then the relationship is commensal. Some plants are parasitic (i.e. Mistletoe) and other plants are parasitized.
Many human diseases are caused by parasites (malaria, sleeping sickness etc) so this is clearly a disadvantage but humans can use parasites to their benefit. Many biological controls involve the use of parasites. In short, a parasite is a disadvantage to its host but may play a number of other roles within the ecosystem.
Many parasites cause harmful effects on their host. Such effects comprise:
WastingAllergic reactionsMechanical damageIrritative reflexes (intestinal contractions: ascaris)
To conclude about parasitism, it is evident that parasitism has very little to offer in terms of benefits. But yes, It helps maintain biodiversity in the ecosystem and controls the population to a large extent. Parasite-host interactions may be important at times. For example, such as parasitoids controlling the body temperatures of their hosts in order to ensure the survival of their offspring, and host choice in fleas being controlled by the off-host environment
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