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Earn +20 ptsQ: Do agnatha have operculum
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What covers the gills of perch?
The operculum
The protective bony cover over the gill slit from which water is pumped out of a fish's body is called?
This is called the operculum
What is the gill covering of bony fish?
The flap of tissue that covers a bony fish gill is the bony operculum.
Are Agnatha internal fertilized?
Externally
What type of fin is located behind the operculum on a perch fish?
The fin located behind the operculum on a perch fish is the Pectural Fins (paired).
What types of body covering do Agnatha have?
skin
What does the word agnatha mean?
without jaws
What is found under the operculum in a fish?
The gills of a fish.
What are identifying characteristics of Agnatha?
Agnatha, also known as jawless fish, lack jaws and scales. They have a cartilaginous skeleton, a round mouth, and a single nostril on their head. Agnatha are also known for their ability to produce slime as a defense mechanism.
What are three main groups of fishes?
Class Agnatha
How do class agnatha breathe?
with gills; they're fish!
How do agnatha breath?
by the gill slits
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