OESOPHAGUS STOMACH
ECHINODERMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
TRUE, tube feet is used for locomotion and feeding
|
|
|
FALSE, tube feet is used for locomotion only
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -The presence of tube feet a characteristic feature of Echinoderms. Tube feet functions in locomotion, feeding and respiration. The tube feet in a sea star are arranged in grooves along the arms. They operate through hydraulic pressure.
Detailed explanation-2: -In ophiuroids the tube feet are used to gain a hold on a surface and to pass food to the mouth.
Detailed explanation-3: -An echinoderm moves by using many tube feet. Tube feet are small, delicate projections attached along the side of a water-filled tube called a radial canal.
Detailed explanation-4: -Tube feet are tube-like structures attached to the lower side of their body that help in locomotion. Starfish belongs to the phylum Echinodermata. The body of echinoderms is covered with spines and they move with tube feet.
Detailed explanation-5: -One highly unique feature of echinoderms is an organized network of canals throughout the body called the water vascular system that functions in locomotion, feeding, excretion, and respiration. The water vascular system uses water pressure generated through muscle contractions to move the organism.