A parasite capable of utilizing multiple host species is classified as__________________?
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Answer: B. Facultative Parasite
Explanation
Facultative parasites can complete their life cycle with or without a host organism. These adaptable organisms are capable of living freely in the environment when hosts are absent. This flexibility distinguishes facultative parasites from strict obligate parasites requiring hosts. Facultative parasitism represents an evolutionary stepping stone toward obligate symbiotic relationships. These organisms typically feed on decaying organic matter when not exploiting living hosts. Environmental stressors often trigger the shift toward utilizing living host resources.
Certain soil fungi act as facultative parasites, attacking crops only under adverse conditions. Understanding facultative habits helps pathologists prevent plant diseases in commercial agriculture. Management strategies must account for organisms that survive independently away from hosts. Obligated parasite requires a living host species exclusively to complete its developmental life cycle. Intermitted parasite visits hosts temporarily for blood meals before returning to shelter. Transitory parasite spends only brief periods associated with a host organism for feeding.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
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