Definition Have no jaws and no scales. Term Whay types of fishes make up Class Chondrichthyes? Definition Cartilaginous fish, such as sharks and rays. Term What is the difference between a heterocercal and homocercal tail? Definition A heterocercal tail is long and thin, such as a common shark tail. A homocercal tail has an even groove, like that on a regular fish. Term What is the purpose of the lateral line? Definition It helps sense vibrations in the water. Term What type of fish does the Class Osteichthyes consist of?
Definition Bony fish. Term Where are the scales located on bony fishes? Definition Under the epidermis. Term What is the purpose of slime on a fish? Definition It provides protection from infection, since it contains antibacterial enzymes. Term What are the two puropses for having special colorization? Camoflauge 2. Bright colors attract mates. Term What is countershading? Definition When the top of a fish is dark to blend in with the water when looked at from above, and the underside is lighter to camoflauge it with sunlight coming from above.
Definition Tail, speed swimming, 1, ray. Definition Base of gills on side, fan water, 2, ray. Term What is the adipose fin? Definition On certain fish, it is an extra appendage near the dorsal fins that stores oils.
Term What is the purpose of the liver? Definition It makes bile, which helps digest fats and break down poisons. Term What is the pyloric caeca? Definition The finger-like area for food that has already been digested by the stomach that breaks it down evern further by using extra strong enzymes.
Term What are gills? Definition Thin tissues with ridges on the exterior that is part of respiratory diffusion and also pulls in minerals such as salt. Term What are the kidneys' functions? Definition To clean ammonia waaste then pass it to the cloaca as urine, and to balance the amount of water in blood. Term In what order does blood pump through the heart name 6 parts? Definition Cardinal vein, sinus venosus, atrium, ventricle, bulbus arteriosus, ventral aorta.
Term What does the sinus venosus do? Definition Oxygen-poor blood is collected here. Term What is the purpose of the atrium? Definition It is the first heart chamber which directs blood in a one-way passage. Term What is the function of the ventricle? Definition It pumps the blood. Term What does the bulbus arteriosus do? Definition It moves blood forward and towards the gills.
Term What is the ventral aortas' function? Heterocercal Illustrations. Popular Comparisons. Adress vs. Comming vs. Label vs. Genius vs. Speech vs. Chief vs. Teat vs. Neice vs. Buisness vs. Beeing vs. Amature vs. Lieing vs. Preferred vs. Omage vs. Finally vs. Attendance vs. Latest Comparisons Tubercule vs. Glyptal vs. Faucet vs.
Com vs. Destroyable vs. Aboriginal vs. Coelomate vs. Ocean vs. Judge vs. Flag vs. Forbear vs. Awesomely vs. Fat vs. Sonhood vs. Ricochet vs.
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