Bony fish have a structure called a __ whose volume of gas is adjusted to mainta
ID: 78613 • Letter: B
Question
Bony fish have a structure called a __ whose volume of gas is adjusted to maintain depth in a body of water. __ is a rod like flexible structure extending the length of the body in a chordate The three tagmata (body segments) in members of the subphylum hexapoda are the head, thorax and ________. _______ have an enormously enlarged chela that can be cocked like the hammer of the gum & snapped shut at a great speed to form a cavitation bubble that will implode with great force to stun prey __ allow leaches to suck blood without their host being aware of them.Explanation / Answer
ANS 36 ) Swim bladder.
swim bladders, which help the body create a neutral balance between and floating at the depth of water.
ANS 37) Notochord.
In the chordates the notochord is a flexible, rod-shaped structure that is found in the embryonic stage of all chordates and also in the adult stage of some chordate species.
It is located between the digestive tube and the nerve cord, providing skeletal support through the length of the body.
In some chordates, the notochord acts as the primary axial support of the body throughout the animal's lifetime
ANS 38 ) posterior abdomen.
ANS 40 ) Human.