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Why is the number of pharyngeal gill slits in sharks fewer than that of other marine fishes?
Wiki User
∙ 10y ago
"Jaws are believed to have evolved from the first pair of gill arches of agnathans. The second pair of gill arches became support structures for the jaws." - Biology Laboratory Manual, Ninth Edition Darrel S. Vodopich and Randy MooreSo, sharks have fewer gill slits because the first two pairs became the jaw and the structural support for the jaw.
Wiki User
∙ 10y ago
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Can you list examples of animals which have gills?
fishes , sharks
Are sharks mamels?
No, sharks belong to the class Chondroichthyes or cartilaginous fishes, along with rays and chimeras.
What are teleosts?
Of or belonging to the Teleostei or Teleostomi, a large group of fishes with bony skeletons, including most common fishes. The teleosts are distinct from the cartilaginous fishes such as sharks, rays, and skates
What is a marine mammalogist?
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What eats sheepshead fish?
Sharks and other large piscivorous fishes feed on the sheepshead.
Compare and contrast the lifestyles of lampreys and sharks?
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What is the job called that you can study sharks?
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Where people see sharks and fishes?
people can see sharks and fishes at the ocean.
Are sharks jaw less fish?
No, sharks are not jawless fishes. They are Cartilaginous fishes
What are the fishes sizes on animal crossings let's go to the city?
The biggest fish you can get is sharks and the smallest marine being is about 5cm long so there you have it!
What Dewey decimal system number would be sharks?
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What do Whitetip Sharks eat?
Fishes and you.
What are fishes enemies?
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Sharks and rays are examples of what kind of fishes member of the class?
Cartilaginous Fishes
Can friendly sharks be kept with other fishes?
Yes so they can make friends with other fishes but as long as they don't hurt each other. Sharks that don't bite humans and other fishes they can be friends with humans and with fishes.
Bull sharks diet?
feeds on various fishes, other sharks, and garbage
Do sharks have earlobes?
No, sharks and all other fishes belonging to the class Chondrichthyes.
