Show:
bony fish
jawless fish
cartilaginousfish
characteristics
wildcard
100
what are 2 examples of jawless fish
What is hagfish and lamprey
100
what are three examples of cartilaginous fish
What is sharks, rays, and skates
100
what are the characteristics of fish
What is live in water, have fins, most fishes are ectotherms, obtain oxygen from gills, and have scales
100
what type of circulatory system do fishes have?
What is a closed circulatory system
200
what percent of fish are bony fish?
What is 95 percent
200
true or false, some jawless fish are parasites
What is true
200
how do sharks obtain oxygen
What is sharks rely on water currents to obtain oxygen
200
Most fish have _____ fertilazation.
What is external fertilization
300
what is a bony fishes skeloten made of?
What is hard bone
300
jawless fishes have special mouths made for_______
What is scraping, stabbing, and sucking
300
true false cartilaginous fish are usually herbivores
What is false carnivores
300
What is a swim bladder?
What is an organ that is an internal gas filled sac that helps the fish stay stable at different depths in water
400
what holds a bony fishes gills
What is a gill pocket
400
how are jawless fish unlike other fishes
What is have no jaws, or scales
400
where do rays and skates obtain their food?
What is on the ocean floor crushing mollusks, crustaceans, and small fishes with their teeth.
500
what are the major structures of bony fish
What is scales ,fins for balance ,tail fin, swim bladder
500
what material makes up the skeleton of jawless fish
What is cartilage
500
what happens if a shark looses a front tooth
What is a tooth behind it replaces it
500
how many chambers are in a fishes heart
What is 2 chambers