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How does a sea anemone stand straight?
They are supported by their hydroskeleton.
Most cnidaria possess a skeletal system known as a?
Hydroskeleton
What does an earthworm receives support and shape from its fluid-filled cavity?
hydroskeleton
How are the muscles arranged in a hydroskeleton?
They are orientated at right angles to one another
Does a worm have a exoskeleton?
A hydrostatic skeleton or hydroskeleton is a structure found in many cold-blooded organisms and soft-bodied animals consisting of a fluid-filled cavity, the coelom, surrounded by muscles. Some examples are soft bodied animals such as sea anemones and earthworms. Hydrostatic skeletons have a role in the locomotion of echinoderms (starfish, sea urchins), cnidarians (jellyfish), annelids (earthworms), nematodes, and other invertebrates. They have some similarities to muscular hydrostats.
How is a flatworm tegument different from a roundworm cuticle?
In flatworms (Platyhelminthes), they have a tegument which is a living outer layer. As a parasite living in the gut of the host, it wants to absorb nutrients from the medium around them, therefore it is important that they have a metabolically active outer layer for vital activities such as absorbtion, protection and secretion. On the other hand, roundworms (Nemathelminthes) have a rigid outer cuticle which works with the muscles to create a hydroskeleton. It has a digestive system which starts with a mouth and ends at the anus. This is significant from a medical point of view as this characteristic, having a cuticle or tegument determines what kind of drug is used to treat the parasite. Some drugs can destroy the living outer layer of a tapeworm, while other drugs are ingested by the roundworms which then attacks the lining of their gut.
How do the jellyfish accomplish circulation?
Jellyfish do have a skeletal system..... A hydrostatic skeleton or hydroskeleton is a structure found in many cold-blooded organisms and soft-bodied animals consisting of a fluid-filled cavity, the coelom, surrounded by muscles...Some examples are soft bodied animals such as sea anemones and earthworms. Hydrostatic skeletons have a role in the locomotion of echinoderms (starfish, sea urchins), cnidarians (jellyfish),annelids (earthworms), nematodes, and otherinvertebrates. They have some similarities to muscular hydrostats.No.No, they have two layers of a skin like wall that holds the jell of their body togetherWrong.... They have A hydrostatic skeleton or hydroskeleton is a structure found in many cold-blooded organisms and soft-bodied animals consisting of a fluid-filled cavity, the coelom, surrounded by muscles.
Which of these has a hydrostatic skeleton?
Animals that have a hydro-static skeleton have a fluid filled body cavity and a muscular body wall. This skeleton has no hard parts but a animal can squeeze the fluid from one area of the body to another under pressure to give him support.
Roundworms body covering?
Nematodes (the more correct name for Roundworms) are slender worms, typically less than 2.5 mm (0.098 in) long. The smallest nematodes are microscopic, while free-living species can reach as much as 5 cm (2.0 in), and some parasitic species are larger still, reaching over a meter in length. The body is often ornamented with ridges, rings, bristles, or other distinctive structures.The head of a nematode is relatively distinct. Whereas the rest of the body is bilaterally symmetrical, the head is radially symmetrical, with sensory bristles and, in many cases, solid 'head-shields' radiating outwards around the mouth. The mouth has either three or six lips, which often bear a series of teeth on their inner edges. An adhesive 'caudal gland' is often found at the tip of the tail.The epidermis is either a synctium or a single layer of cells, and is covered by a thick collagenous cuticle. The cuticle is often of complex structure, and may have two or three distinct layers. Underneath the epidermis lies a layer of longitudinal muscle cells. The relatively rigid cuticle works with the muscles to create a hydroskeleton as nematodes lack circumferential muscles. Projections run from the inner surface of muscle cells towards the nerve cords; this is a unique arrangement in the animal kingdom, in which nerve cells normally extend fibres into the muscles rather than vice versa.
What is transported in an insects blood?
They either jump, hop, crawl, or fly. These six legged creatures usually use their legs for movement . Ant and cockroahes lice and bedbugs crawl. grasshopper hops with the help of its ling hindleg. waterboatmen swim with the help of their legs as using them as oars. Butterfly and flies fly with the help of their weak wings manovering them with their chest muscle.
