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Quiz #1. Grade:. «grade». Aquatic Science. Subject:. «date». Date:. 1. The defining characteristic of an animal in the class Chondrichthyes is:. A. aggressive behavior. B. a cartilaginous skeleton. C. a lineagethat goes back hundreds of millions of years. D. - PowerPoint PPT Presentation
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Quiz #1
Grade:«grade»
Subject:Aquatic Science
Date:«date»
1 The defining characteristic of an animal in the class Chondrichthyes is:
A aggressive behavior
B a cartilaginous skeleton
C a lineagethat goes back hundreds of millions of years
D the constant shedding & regrowing of teeth
2 The tiger shark has which type of caudal fin:
A homocercal
B heterocercal
C dorsal prominent
D ventral prominent
3 All of the following are in the subclass of Elasmobrachii, EXCEPT:
A sharks
B rays
C chimeras
D skates
4 Sharks have a very streamline shape that is called:
A Coelomate
B Psuedocoelomate
C Pentameric
D Fusiform
5 Which of the following is NOT a characteristic of Chimeras
A They have 6 teeth that are constantly replaced
B They have 6 teeth that are permanent and used for grinding shelled inverts
C They have only a single gill slit
D They have fewer organs than a shark or a ray.
6 A spiracle on a sting ray is located
A near the nostrils
B behind the eyes
C in the middle of the back
D directly anterior of the caudal fin/tail
7 Both subclasses of chondrichthyes had their radiation event:
A Cambrian
B Devonian
C Cretaceous
D Tertiary
8 Chondrichthyes use which of the following to help with bouyancy.
A oil-filled liver
B gas bladder
C swim bladder
D blubber
9 Which of the following does NOT shed many teeth in its lifetime
A Tiger Shark
B Manta Ray
C Chimera
D Great White Shark
10 "Chondrichthyes" means
A "bone" "fish"
B "aggressive" "fish"
C "cartilage" "fish"
D "hollow" "fish"
11 Scientists have discovered scales of chondrichthyes that date back to the ____________ period.
A Cambrian
B Silurian
C Ordovician
D Quaternary
12 Many sharks must constantly move so that they can continually wash oxygenated water over their gills. These sharks have which of the following respiratory systems:
A Two Pump
B Ram Ventilation
C Spiracles
D Lobed Lungs
13 Cetaceans (dolphins/whales) look a lot like chondrichthyes, these similar structures are
A homologous
B evolutionary
C analogous
D caudal fins
14 Chondrichthyes have ______________ scales.
A Placoid
B Ganoid
C cycloid
D ctenoid
15 True or False: The class chondrichthyes includes the largest animals to ever exist on the planet.
True
False
