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Question
Which of the following is a parasite of marine fishes?
Which of the following is a parasite of marine fishes?
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Solution
The correct option is D Copepods
Parasitism is a type of population interaction between two living species in which one organism (the parasite) lives on and derives nutrition from another specific organism (the host).
Copepods are small crustaceans (shelled organisms belonging to the phylum Arthropoda). Some species are ectoparasites i.e they live on the body of their host (fresh water and marine fishes). So they are commonly referred to as fish lice. Hence option d is correct.
Snails belong to the phylum Mollusca. They are usually not parasites on fishes.
Cyanobacteria or blue green algae are autotrophic organisms belonging to the kingdom Monera. They prepare their own food and are not parasites.
Barnacles are marine crustaceans. They attach permanently to surfaces like rocks, bodies of whales, etc. They are usually not parasites.
Parasitism is a type of population interaction between two living species in which one organism (the parasite) lives on and derives nutrition from another specific organism (the host).
Copepods are small crustaceans (shelled organisms belonging to the phylum Arthropoda). Some species are ectoparasites i.e they live on the body of their host (fresh water and marine fishes). So they are commonly referred to as fish lice. Hence option d is correct.
Snails belong to the phylum Mollusca. They are usually not parasites on fishes.
Cyanobacteria or blue green algae are autotrophic organisms belonging to the kingdom Monera. They prepare their own food and are not parasites.
Barnacles are marine crustaceans. They attach permanently to surfaces like rocks, bodies of whales, etc. They are usually not parasites.
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