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Zoology : Chapter 18 Quiz - Fishes

Terms in this set (18)

Vascular folds in the epithelium of gill filaments are called
lamellae
Fishes WOULD NOT regulate their buoyancy by which of the following ways?

a. structure and orientation of the fins
b. possession of relatively light bones
c. regulation of gasses in the swim bladder
d. retention of oils in the liver
e. possession of relatively dense bones
e. possession of relatively dense bones
In the epidermis of fish skin, there are sensory pits that may be used for detecting currents; these pits comprise the
lateral line system
Adult sea lampreys in the Great Lakes feed primarily on
large bony fish
In their feeding habits, the largest sharks are
filter feeders
Fishes that migrate between freshwater and marine environments are said to be
diadromous
The appearance of __________ is considered to be one of the major developments in vertebrate evolution.
jaws
There is a higher percentage of oxygen in the air than in water. So why is it that when you take most fish out of water they can not breathe and die even when their gills are still moist?
Because fish respiration is dependent on a countercurrent movement of water across the huge membrane surface area available when gill filaments are suspended in water. This surface area collapses into a single lump when in the air.
Some elasmobranchs and some bony fishes such as the tuna, maintain water flow over the gills by holding the mouth open. This is called __________ ventilation.
ram
Characteristics of sharks, rays, skates, and ratfishes that place them in the class Chondrichythes
placoid scales and cartilaginous skeleton
Sharks, skates, and rays are in the class
Chondrichthyes.
A common opening for excretory, digestive, and reproductive products is the
cloaca
The lobe finned fishes, such as coelacanths are found in the class
Sarcopterygii.
Which class contains the lampreys?
Petromyzontida
The modern bony fishes are the
teleosts
What is the counterpart to the lungs of lungfish (Sarcopterygii) found in most ray finned fish (Actinopterygii)?
swim bladder
Primitive bony fishes that retain the notochord as adults are
sturgeons
Sharks arose from early jawed fishes midway through the __________ period.
Devonian
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