Characteristics of a Fish

Question 1

fish

Answer 1

• vertebrates
• water dwelling
• scales and fins
• close circulatory system
• gills
• eat just about anything
• heterotrophs
• they have a two chambered heart
• sexual reproduction
• ectothermic (cold-blooded)

Question 2

bony fish

Answer 2

• they are the most common group of fish
• they swim in schools
• swim bladders (it helps them stay afloat)
• operculum (it protects the gills)
• the male has the babies