Question

why octopus and squid are not able to move freely in water

Answer 1

Answer:

because of their jelly type body and no fins

Answer 2

Answer:

Octopuses and squids move by "jet propulsion", sucking water into a muscular sac in the mantle cavity surrounding their bodies and quickly expelling it out a narrow siphon. Both octopuses and squids are related to snails and other molluscs.

Explanation: