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