Amphibians and Fish Crossword Puzzle

QUESTIONS LIST:

• sexually : fish reproduce _
• lateral line : enables a fish to sense its environment
• external : most fish have _ fertilization
• salamander : long slender bodies
• biological _ indicators : amphibians are great _
• cartilaginous : sharks, rays and skates
• toad : rough skin with shorter legs
• gills : fish exchange oxygen and co2 over their _
• endothermic : body temperature stays at a constant temp internally
• jaw less : lampreys and hags
• hibernation : inactivity during the winter
• scales : hard thin plates that cover the skin and protect the body
• estivation : inactivity during the hot dry months
• swim _ bladder : air sac that allows the fish to change its density
• two _ chambered : fish have a _ heart
• bony : walleye, perch and northern pike
• frog : wet, smooth skin with long legs
• ectothermic : body temperature is based off of the environment surrounding it
• spawning : females release their eggs and males come over and dispense their sperm on them to fertilize the eggs.
• internal : some fish such as guppies have _ fertilization