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A) Absence of fins B) Scales C) Dorsal spines only D) Barbels
A) Caudal fin B) Adipose fin C) Anal fin D) Pectoral fin
A) Pimelodidae B) Ictaluridae C) Loricariidae D) Siluridae
A) Fins B) Barbels C) Teeth D) Bony plates
A) Auchenipteridae B) Sisoridae C) Bagridae D) Clariidae
A) Determining age B) Species identification C) Measuring length D) Assessing health
A) Square and bulky B) Tall and compressed C) Flattened and elongated D) Round and short
A) Siluridae B) Ictaluridae C) Pimelodidae D) Loricariidae
A) Respiration B) Defense C) Sensory perception D) Swimming
A) Scale analysis B) Fin ray count C) Body shape D) Barbbel count
A) Brackish water B) Freshwater C) Deep sea D) Saltwater
A) Mochokidae B) Schilbeidae C) Trichomycteridae D) Plotosidae
A) Bony plates B) Large barbels C) Bright stripes D) Transparent body
A) Yangtze River B) Mississippi River C) Nile River D) Amazon River
A) Determining age of the fish B) Assessing the health of the fish C) Measuring the size of the fish D) Dietary identification and species classification
A) Herpetology B) Entomology C) Ichthyology D) Ornithology
A) One long dorsal spine B) Lack of barbels C) Large, prominent eyes D) Two rows of overlapping bony plates
A) Round and bulbous B) Elongated and cylindrical C) Compressed laterally D) Flattened dorsoventrally
A) Swimming upside down B) Bright coloration C) Lack of barbels D) Large size
A) Glowing patterns B) Iridescent scales C) Bright colors D) Camouflage
A) Trichomycteridae B) Amblycipitidae C) Cetopsidae D) Pangasiidae
A) Bagridae B) Akysidae C) Plotosidae D) Amphiliidae
A) Fin located near the gills B) Fin located on the back of the fish C) Fin located on the ventral surface near the abdomen D) Fin located at the tail
A) Ictaluridae B) Malapteruridae C) Siluridae D) Loricariidae
A) Anal fin B) Dorsal fin C) Pectoral fin D) Caudal fin
A) The study of genetics B) The study of the form and structure of organisms C) The study of animal behavior D) The study of ecosystems
A) Digestion B) Detecting vibrations and pressure changes C) Breathing D) Producing sound
A) Preference for warm water B) Bright coloration C) Large dorsal fin D) Activity during the night |