Question

squid and octopi do not have a single bone in their body. how do they maintain their structure and actually move?
a. by taking in oxygen in the water
c. their cartilage is very strong like bones.
b. water helps them move and hold their
d. eating plankton helps them with structure and
structure.
movement
please select the best answer from the choices provided

Explanation:

Squid and octopi are marine animals without bones. They have a hydrostatic skeleton. Water pressure helps them maintain shape and move. Option a (taking in oxygen) is for respiration, not structure/movement. Their cartilage (option c) is not like bone in this context. Eating plankton (option d) is for nutrition, not structure/movement. Option b is correct as water provides the necessary support for their structure and movement.

Answer:

B. Water helps them move and hold their structure.