Section 1
Two groups of fishes in the class Chondrichthyes
Sharks, rays, skates, ratfish
Amount of chambers in a fishes heart
2
TRUE OR FALSE
Sharks see color
False
What type of coloration shows fish to be poisonus, dangerous or taste bad
Warning coloration
What is the word that refers to not regulating own body temperature
Ectothermic
Sharks must swim to
Breathe
Fish reproduction relies heavily on
Timing
Bands of muscle that wrap around the fishes mid section
Myomeres
Most sharks are characterized by a ________ caudal fin
Heteroceral
CO2 rich water leaves the fishes body through the
Gills
Carnivorous fish intestines are
Short, straight
Sharks pectoral fins provide
lift, prevents them from sinking
What kind of scales do sharks have
Placoid
Why is gas exchange so efficient in fish
Countercurrent system of flow
What type of fish are clownfish
Anemone fish
Give an example of a filter feeder
basking shark, whale shark, manta ray, devil ray
Sharks skeletons are made of
cartilage
oxygen dissolved in water diffuses into the
Capillaries
Sharks have _________ gill chambers per side, while fish only have _________
multiple, one
_______ is the area of water from the surface to the floor
Water column