An Octopus is an aquatic animal but it does not have a streamlined body. However, it makes its body-shape streamlined while moving in water. What could be the reason for this?
Answers
Answer:
• The octopuses moves underwater with great speed due to the mechanism called as jet propulsion.
Explanation:
• The octopus which belongs to phylum Mollusca of the animal kingdom is very unique in its design of the body. It has a large sac like structure which has two very large eyes and is the head of the octopus.
• Also they have powerful tentacles which it uses to grab its food.
• Generally, octopus lives in the sea surface changing the colour of its body to comoflauge its body against its predators while searching for small crabs, etc as its food.
• But when it is encountered with any danger they move very swiftly by a mechanism called as jet propulsion.
• In this, first it draws water in its sac like head and throws it out with great speed which propels its body to move very fast underwater and to escape from any dangers that they encounter.