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Class Chondrichthyes Cartilaginous fishes Marine Fishes

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Page 1: Class Chondrichthyes Cartilaginous fishes - schools.misd.orgschools.misd.org/upload/template/5319/Class Agnatha.pdf · Sharks Class Chondrichthyes gill slits instead of operculum

Class Chondrichthyes

Cartilaginous fishesMarine Fishes

Page 5: Class Chondrichthyes Cartilaginous fishes - schools.misd.orgschools.misd.org/upload/template/5319/Class Agnatha.pdf · Sharks Class Chondrichthyes gill slits instead of operculum

Sharks

Class Chondrichthyes

gill slits instead of operculum

Rows of teeth in constant motion

Huge size variation

Size decrease due to overhunting

All regions/all depths

Some may even be freshwater/brackish

Slow growth

Slow reproductive cycle

Page 6: Class Chondrichthyes Cartilaginous fishes - schools.misd.orgschools.misd.org/upload/template/5319/Class Agnatha.pdf · Sharks Class Chondrichthyes gill slits instead of operculum
Page 9: Class Chondrichthyes Cartilaginous fishes - schools.misd.orgschools.misd.org/upload/template/5319/Class Agnatha.pdf · Sharks Class Chondrichthyes gill slits instead of operculum

Ray and Skate Species

Page 11: Class Chondrichthyes Cartilaginous fishes - schools.misd.orgschools.misd.org/upload/template/5319/Class Agnatha.pdf · Sharks Class Chondrichthyes gill slits instead of operculum

Ratfishes

Class Chondrichthyes

One pair gill slits covered by skin

Mostly deepwater

Feed on mollusks/crustaceans