Which organism has hydrostatic skeleton?
Hydrostatic Skeleton This type of skeletal system is found in soft-bodied animals such as sea anemones, earthworms, Cnidaria, and other invertebrates (Figure 1). Movement in a hydrostatic skeleton is provided by muscles that surround the coelom.
Does a sponge have a hydrostatic skeleton?
Sponges have an internal skeleton that gives them support and protection. An internal skeleton is called an endoskeleton. A sponge endoskeleton consists of short, sharp rods called spicules (see Figure below). They grow from specialized cells in the body of the sponge.
Do cephalopods have hydrostatic skeletons?
In addition, there are structures such as the arms and tentacles of cephalopods, the tongue of mammals and the trunk of the elephant that also rely on hydrostatic skeletal support but lack the fluid-filled cavities that characterize this skeletal type.
What animals are hydrostatic?
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. Earthworms have rings of muscles that are filled with fluid, making their entire body hydrostatic.
Is an elephant Endoskeleton?
Elephants do not have an exoskeleton, they have an endoskeleton just as humans. This is because the skeleton of an elephant lies inside the body…
Is a jellyfish exoskeleton?
Insects, crustaceans, and many other invertebrates have a hard outer case called an exoskeleton. Slugs, leeches, and jellyfish have soft bodies and no exoskeleton.
Where is the elephant heart?
His real heart hangs between his breastbone and ribs, a little to the left, just like mine does. But instead of having a heart with a single point, an elephant’s heart has two points at its apex – so it’s the wrinkled outline of a human heart that Jabu carries on his trunk.
What is the heartbeat of elephant?
The heart rate of a huge size elephant is about 25 beats per minute.
What animal has the fastest beating heart?
pygmy shrew