NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM ANIMALS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these is the common example for agnatha/jawless fish?
A
Sharks, Skates, and Rays
B
Lamprey and Hagfish
C
Flounder and Tuna
D
Seahorses
Explanation: 

Detailed explanation-1: -Jawless fishes have long, cylindrical body. The skeleton is made up of cartilage instead of bone. Examples of jawless fish includes lampreys, hagfish.

Detailed explanation-2: -Agnatha are jawless fish. Lampreys and hagfish are in this class. Members of the agnatha class are probably the earliest vertebrates.

Detailed explanation-3: -Lamprey and hagfish are both jawless fishes. They are the only living members of the taxonomical class Agnatha (Greek for “no jaws”).

Detailed explanation-4: -The lampreys and hag-fish are the two primary groups of extant agnathans.

Detailed explanation-5: -There are two categories of jawless fish: hagfish and lampreys. Hagfish usually feed on dead or dying fish. These fish can be found around the tunnels they dig in muddy bottoms, in moderate depths and cold waters.

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