Want this question answered?
Echinoderms are mostly marine while arthropods dwell in almost all habitats.
The major difference between echinoderms and other invertebrates is that there are few examples echinoderms that do not live in ocean water and none live on land. There are examples of other invertebrates that live in both fresh and salt water and on land. Echinoderms also display radial symmetry as do the jellyfish and sea anemones. If you want to tag the one thing that echinoderms have that no other living invertebrate has, you would probably have to point to their water vascular system (see link). If you have the McGraw Hill science textbook for 6th grade then you are all set. Look on pages A40-A48.
All legged arthropods have joints. Since arthropods have rigid exoskeletons, some degree of articulation or jointing would be essential else locomotion would be impossible. To provide the degrees of freedom necessary for effective locomotion, multiple joints per leg are necessary. The strategy varies somewhat from species to species in terms of the type and number of joints and length of each segment depending on the degrees of freedom required for each particular organism.
adults have less bones, because they join together. and children do not get hurt as much, because they have lots of cartilage
every thing
they are both creatures with skeletons (::)
Vertebrates have spinal cords, internal skeletons and backbones. Invertebrates do not have these characteristics. Some examples of invertebrates include jellyfish, earthworms and snails.?æ
A skeleton is the bony remains of a person with little to no soft tissue remaining. A mummy is a dessicated corpse that has most of the soft tissues remaining over the bones.
The echinoderm's mouth is the shape of a pentagon and it has 5 teeth-like teeth. The difference between the echinoderm's and the jellyfish's radial symmetry is that the jellyfish shows radial symmetry and is spherical in shape. The echinoderms are flatter, have five arms and have pentaradial symmetry.
No. echinoderms have no exoskeleton.Related Information:Echinoderms are deuterostomes, a group belonging to the Phylum, Chordata but separate from the vertebrates, also of this phylum. While there is a close relationship between the echinoderms and the vertebrates, echinoderms are endoskeletal invertebrates.
Girdle
they are both creatures with skeletons (::)