Arthropods

jointed appendages.

Arthropods have the common characteristics of exoskeletons made of chitin, necessitating the further characteristics of segmented bodies and joint appendages. The phylum's name arthropoda comes from the greek meaning jointed legs or feet.

* centipedes * horseshoe crabs * insects * millipedes

1. A hard outer body covering called an exoskeleton.
2. Specialized mouth parts
3. Jointed legs
4. Compound Eyes
5. Segmented body

Yes, they do reflect a high degree of internal organization with organ systems for circulatory, reproductive, digestive and neurological functions to support a sensory array including (in most) vision and (in many) a highly attenuated chemical sense.

Arthropod is the largest in the animal kingdom. They include lobsters, crabs, spiders, mites, insects, centipedes, and millipedges. Arthropods can be found in every habitat on Earth. They show a great variety of adaptations which included living in aquatic environments, and some groups even have adapted for flight.

The lobster you might be used to seeing with the big claws is the american lobster (Homarus americanus), and lives off the east coast of North America, from below Maine up to Newfoundland. They are actually not red in the wild; the red color is a consequence of non-red pigments breaking down during cooking.

The exoskeleton of arthropoda is made of a tough protein called chitin, a long chain polymer comparable to cellulose. It fills the same role as the protein keratin in other animals where it would be found in hair, nails, hooves, claws, beaks, etc.

Some arthropods, like crustaceans, further harden their chitin exoskeleton by biomineralization with calcium carbonate. Because it is inflexible, the organism has to periodically shed it (moult) in order to grow.

Arthropods, which fall under the phylum of Arthropoda, encompass many animals such as spiders, insects, crustaceans, centipedes, and scorpions. One characteristic of arthropods is their exoskeleton, which they have because they are invertebrates and do not have any internal bones to support them. Other characteristics of arthropods include their segmented bodies, bilateral symmetry, open circulatory system, and jointed appendages.

The largest non-extinct arthropod in size was a Japanese spider crab caught in 1921 measuring about 12 feet across the claws. The heaviest on record was a lobster weighing about 45 pounds. On land, the largest is the coconut crab at about 3 feet across. Some anecdotal evidence exists for even larger crustaceans, based on recovered exoskeletons/exuviae.

ARTHROPODA AND ANNELIDA have organ system level of organization , have bilateral symmetry , are triploblastic , are heterotrophic , have complete digestive system and also show metameric segmentation .

Water striders are classified as arthropods because of characteristics shared in common with other arthropods. It's important to remember the arthropod phylum (Arthropoda) is a very broad categorization of living things, characterized by jointed limbs, segmented bodies, and a hard exoskeleton. It includes all the insects. Water striders are considered "true bugs" or Hemiptera, along with aphids, shield bugs and leaf-hoppers; their order is classified below Insecta (the insect class).

Moth possess all basic arthropod characters which are

1 , Jointed appendages

2 , chitinous exoskeleton

3 , Hemocoel

4 , open circulatory system .

Hence moth is Arthropod .

Insecta (the insects) are the only invertebrates to have flight capability, found under subphylum Hexapoda below the arthropods (phylum Arthropoda). Winged insects are under subclass Pterygota.

Under the arthropoda phylum are subphyla Chelicerata, Myriapoda, Crustacea, and Hexapoda. (There is also an extinct class Marrellomorpha and an the extinct Trilobite subphylum). The chelicerata include spiders, scorpions, mites, etc. Myriapods include centipedes and millipedes. Crustaceans include lobsters, krill, crabs, shrimp, woodlice, etc. Hexapoda include the class Insecta, the insects.

The 4 major groups of arthropods are crustaceans. arachnids, centipedes and millipedes, and insects.

Arthropods are invertebrates that have an external skeleton, a segmented body, and jointed attachments called appendages.

NO. not at all

He is a Native American

Eurypterids are ancestors of Dinosaurs.

polysaccharides

Locomotion = movement. The emperor scorpion walks using its four pairs of walking legs.

i am doublejointed, and i really would love to know why? its a brilliant thing and i love it but i am also curious? please help xx

The exoskeleton of arthropods defines their gross morphology (as determined and maintained by principles of genetic expression); although life stages may evidence significant differences (egg and larval stages, versus adult shape, for example). Since the exoskeleton can't grow owing to its rigidity, arthropods need to periodically shed it in order to increase in size, a process called ecdysis.

The lobster skin is also its skeleton... called an exoskeleton. It is made of a tough protein called chitin, similar in function to hair, fingernails, claws, hooves, beaks, etc. Usually lobsters further harden it using a process called biomineralization.

Because it isn't flexible, the lobster needs to shed it completely (moult) in order to grow.