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