How many major groupings of fish are there?
Three.
What organ is responsible for gas exchange in fish?
Gills
Sharks are in which class?
Cartilaginous fish (Chondrichthyes)
What are the Ampullae of Lorenzini?
Electrosensors
What are the three major groups of amphibians?
Frogs/Toads
Salamanders/Newts
Caecilians
What is the eating habit of the adult Anura (frogs and toads)?
Carnivore.
What is the most primitive class of fish?
Jawless fish (Agnatha)
What is the most diverse grouping of fish?
Osteicthyes -Bony Fish
What is "heterocercal" a type of?
Tail
What does the amphibian double life mean?
Life cycle in water and land.
What order of amphibians is tailless?
Anura. (frogs and toads)
What is the gill chamber protected by, covering and opening and closing to move water?
Operculum
Name the three respiratory surfaces that amphibians have.
Lungs, gills, mucus-moistened skin.
What are two reasons that cause the decline of amphibians?
Pollution and chytrid fungus.
Varying: Tails, life cycle, etc.
What structure do sharks use to sense movement in water?
Lateral Line.
What process must fish regulate in order to maintain the correct concentration of solutes (salts) in their blood?
Osmosis
What makes a frogs liver different from a human's?
These are legless amphibians
Caecilians