What are examples of a non muscular hydrostatic skeleton?

Hydrostatic skeletons are very common in invertebrates. A common example is the earthworm. Also, hydrostatic nature is common in marine life such as jelly fish, starfish, and sea anemones.

1. Which organism does not have a hydrostatic skeleton?
2. Is an octopus a hydrostatic skeleton?
3. Is a snail a hydrostatic skeleton?
4. Which animals have hydrostatic skeletons?

Which organism does not have a hydrostatic skeleton?

7.3 Hydrostatic Skeleton

There are, however, soft-bodied animals (such as the sea anemone and the earthworm) that lack a firm skeleton. Many of these animals utilize Pascal's principle to produce body motion. The structure by means of which this is done is called the hydrostatic skeleton.

Is an octopus a hydrostatic skeleton?

Humans use hydrostatic fluid to support their tongue movement, starfish use hydrostatic support to move their hundreds of fluid filled tube-feet, squid and octopus us hydrostatic support to move their arms and legs, and many vertebrates like turtles and elephants have hydraulic/hydrostatic penises (spring loaded fluid ...

Is a snail a hydrostatic skeleton?

Hydrostatic skeletons are found in soft-bodied invertebrates including in addition to the annelids and cnidarians mentioned above, mollusks (snails, squids, etc), flatworms (planarians), nematodes, and other lesser groups.

Which animals have hydrostatic skeletons?

Hydrostatic skeletons are fluid-filled columns, or cavities, inside invertebrates, including jellyfish, flatworms, nematodes, and annelids such as earthworms.