A) Absence of scales B) A prominent spine at the angle of the operculum (gill cover) C) Bright red coloration all over the body D) Three dorsal fins
A) Acanthuridae B) Pomacanthidae C) Chaetodontidae D) Labridae
A) Freshwater rivers B) Arctic waters C) Open ocean D) Coral reefs
A) Algae B) Plankton C) Sponges D) Small crustaceans
A) Always fluorescent B) Identical to the adults C) Different from adults of the same species D) Always black and white
A) Presence or absence of fins B) Number of teeth C) Body size alone D) Color patterns and markings
A) Emperor Angelfish B) Queen Angelfish C) French Angelfish D) Flame Angelfish
A) Lemonpeel Angelfish B) Midnight Angelfish C) Eibl's Angelfish D) Coral Beauty Angelfish
A) Temperate zones only B) Freshwater lakes C) Polar regions D) Tropical and subtropical waters
A) Swimming with pectoral fins B) Crawling along the substrate C) Using jet propulsion D) Floating passively
A) Varies greatly depending on the species B) Exactly 5 years C) Always more than 50 years D) Always less than 1 year
A) Males have prominent horns B) Size difference of more than double C) Completely different body patterns D) Subtle differences in coloration or fin shape
A) Always live in large schools B) Often solitary or found in pairs C) Migrate together in large groups D) Always fight each other
A) Over 3 feet B) Between 6 and 12 inches C) Exactly 4 inches D) Less than 2 inches
A) Flame Angelfish B) Bicolor Angelfish C) Regal Angelfish D) Lemonpeel Angelfish
A) Watanabe's Angelfish B) Japanese Angelfish C) Goldflake Angelfish D) Potter's Angelfish
A) Regal Angelfish B) Clarion Angelfish C) Coral Beauty Angelfish D) Scribbled Angelfish
A) Angelfish are a type of butterflyfish B) Butterflyfish prey on angelfish C) They are the same fish at different life stages D) They are related but belong to different families
A) Habitat destruction B) Lack of predators C) Extremely cold temperatures D) Overpopulation
A) Japanese Angelfish B) French Angelfish C) Coral Beauty Angelfish D) Flame Angelfish
A) Laying on the bottom of the tank B) Increased aggression towards tank mates C) Hiding or loss of appetite D) Rapid swimming in circles
A) Laterally compressed (flat) B) Cylindrical (round) C) Globular (ball-shaped) D) Elongated (snake-like)
A) Defense against predators B) To help them swim faster C) To attract mates D) To filter food
A) Orange B) Purple C) Yellow D) Blue
A) Varied diet including sponges, algae, and meaty foods B) Exclusively flake food C) Only live food D) Only frozen brine shrimp
A) Asfur Angelfish B) Goldflake Angelfish C) Passer Angelfish D) Blueface Angelfish
A) Broadcast spawning B) Internal fertilization C) Asexual reproduction D) Live birth
A) Iridescent green scales B) All red body C) Yellow front and black rear D) Pink stripes
A) Scale color B) Size and habitat C) Fin shape D) Diet alone |