An organism which establishes a close and intimate physiological relationship with another organism is known as parasite. These are differs from predators. The adaptations due to parasitic mode of life are known as parasitic adaptation. These can be divided into two types:-
1. Morphological (Structural)
2. Physiological (Functional)
We can understand this by many examples. One of this is Taenia solium.
Morphological adaptations are as follows-
a. Body covering- Presence of cuticle-Minute spines and scales are present
b. Adhesion organs- Hooks and suckers are present
c. Locomotory organs- Absent
d. Trophic organs- Suctorial pharynx is present for sucking food.
e. Nervous system- Well developed only in adhesive organs
f. Reproductive organs- Best/ well developed
* In Taenia solium each body segment has complete set of male and female reproductive organs.
Physiological adaptations are as follows-
a. Presence of protective devices which protects from digestive juices of host.
b. Anaerobic respiration
d. High fertility rate
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