Which of the following classes has members that are exclusively aquatic?
All members of the class Pisces (fishes) are exclusively aquatic.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Vertebrata - Amphibia and Reptilia
#aquatic animals
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Which aquatic animal has NOT been found with microplastics in studies?
Microplastics have been reported in marine and aquatic invertebrates, birds, and whales, among many other organisms. Invertebrates ingest particles during filter feeding, deposit feeding, or grazing; birds acquire them directly and through prey; whales can ingest large numbers while filter feeding or consuming contaminated food. Therefore none of the listed animal groups can be identified as wholly unreported. Particle size, shape, polymer type, weathering state, and associated chemicals all influence uptake and biological response, so microplastics are not a uniform toxicant. Laboratory effec
Ref: Campbell Biology, Urry et al., 12th Ed., Unit 8 Ecology
