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