Arthropods

Anthropods (humans) do have internal skeletons; arthropods (phylum arthropoda) by definition does not - instead they have external or exoskeletons.

Note that the term 'anthropod' should not be confused with 'arthropod' - anthropod is not a phylum nor taxon but is a general term meaning human or humanoid.

cane

Arthropods are a category of invertebrate characterized by chitinous exoskeletons and segmented bodies; the three types are insects, arachnids, and crustaceans. Bodies of arthropods typically come in three sections, the head, the thorax, and the abdomen. Each of these is a segment. But some species, such as a centipede or a millipede, have more segments.

Yes. Arthropods have body cavities (coelomates); their main internal cavity is a hemocoel, which accommodates their internal organs and through which their blood circulates - they have open circulatory systems. Arthopods come from a lineage of animals that have a coelom, a membrane-lined cavity between the gut and the body wall that accommodates the internal organs. The coelom of the arthropod is reduced to small areas around the reproductive and excretory systems. Visit http://smackers0609.blogspot.com/Yes. Arthropods have body cavities (coelomates); their main internal cavity is a hemocoel, which accommodates their internal organs and through which their blood circulates - they have open circulatory systems. Arthopods come from a lineage of animals that have a coelom, a membrane-lined cavity between the gut and the body wall that accommodates the internal organs. The coelom of the arthropod is reduced to small areas around the reproductive and excretory systems. Visit http://smackers0609.blogspot.com/

There are several methods arthropods use for gas exchange; insects have holes in their segments called spiracles, connected to a trachea and tubules which deliver oxygen directly to tissues without needing to go through a bloodstream; and also remove waste gasses. Arachnids may use a type of simple lung called a book lung, comparable to a book gill in a similar stacked spatial arrangement for some aquatic arthropods. Other marine arthropods use gills for gas exchange, such as crabs and lobsters; crabs can continue to use gills on land so long as they remain moist. The simpler and smaller arthropods are able to perform gas exchange across their entire body surface and need no additional specialized gas exchange structures.

The treatments can be compared to each other instead of to a control

Arthropods adapted to an aquatic environment that need to extract oxygen from water will have gills, for instance most (but not all) crustaceans, like crabs and lobsters. Crabs can come on land so long as their gills are kept moist; those that do usually seek out damp habitats.

It is not likely that the annelids evolved from the arthropods is as much as they are the much simpler of the two groups of organisms. The arthropods have a well developed open circulatory system, segmented muscles and a complex nervous system (including eyes and chemoreceptors, the antennae) and an exoskeleton.

Arthropods are characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages.

Bumblebees are insects, and all insects are arthropods.

Arachnids differ from other arthropods in that they have no antenna (nor wings, like many insects). They also use book lungs to breathe, rather than the gills or spiracle/trachea configuration. They have a body plan of only two sections (tagmata) and eight legs, although often with a modified forward pair different from most other arthropods.

Yes, by definition all arthropods are taxonomically related in the sense that they share membership in the same phylum (Arthropoda); although this does not necessarily mean they share a common ancestor.

I can give you few because based on our lesson, arthropods have 5 subclasses: These are the crustaceans, arachnids, insects, millipedes and centipedes.

Examples of crustaceans are crab,lobster, shrimp and crayfish. Examples of Arachnids are spiders , mites , scorpions and ticks. Insect Examples: lady bug, grasshopper, housefly , mosquito and butterfly. Of course examples of millipedes and centipedes are obvious.

---Co0leTs24

1. There long primitive 555 million year old history allowed them to collonise almost every corner of planet Earth, they thrive in the world's oceans, land , and achieved fight. but what allowed them to become one of evolution's greatest success story?

1. they time of each living generation in an abosulute, why? since a bugs life is relatively short they mature quicker and eventually reproduce a lot of babies. the speed of life boosts their chace of survival and envolution can be pushed to the accelerator, this means they adapt quicker to their changing environment and thus helped them to forish on the most hospital of places.

now I answered you question so GIVE ME UR MONEY BI@$H!

sorry I hace spasmcindrome Xp

no, i dont know what they are, but they are not arthropods

Arthrpoda has an extinct class Marrellomorpha and an the extinct Trilobite subphylum. The order Eurypterida (eurypterids) or sea scorpions, related to arachnids are also extinct. They may have been the largest arthropods to have ever lived.

A typical arthropod, such as an ant, has three body sections - head, thorax and abdomen.

However, the phylum "arthropoda" which literally translates to "jointed foot" (or, by extension, "jointed leg") includes more than a million species, some of which (the lobster, for instance) have as many as eight body sections, and others such as the arachnids (spiders), only two.

For a basic science test, 3 is probably the answer.

The vertebral column or spine comprises individual bones (vertebrae) as part of an internal skeleton or endoskeleton. Arthropods differ in that they have no bony internal skeleton, instead they rely on an external or exoskeleton, whose rigidity creates the defining characteristics of the arhtropod phylum; the joint appendages and segmented body.

No, at least not in the backbone sense. Arthropods have their skeleton on the outside (exoskeleton); spines or vertebral columns are characteristic of vertebrates under a different phylum - Chordata, including fish, birds, mammals, etc.

Mosquitoes are insects. They are in winged insects (pterygota), then holometabola, meaning they posses true metamorphosis with larval, pupal and adult stages. Within holometabola they belong to the diptera or flies, which can be distinguished from other insects in that their hind wings are reduced to a balance organ called a haltere. Within diptera they are the family culicidae which can be distinguished from other flies by a piercing proboscis and scales on the veins of the wings.

You have to be more specific to which arthropod you are researching. There are many classifications: insects, arachnids, crustaceans, etc. Some spiders weave webs while others go out in search of food. Crabs, lobsters, and shrimps scavenge. Bees go around and outward from their hive in a circular motion in search of flowers.

Arthropod skeletons differ from ours in that they are external, or exoskeletons. By contrast ours are internal, or endoskeletons.

Grasshoppers and crickets

Arthropods are characterized by segmented bodies, an exoskeleton made from chitin, and joint appendages. They have an internal body cavity (hemocoel) and an open circulatory system which employs hemolymph, a fluid that does not distinguish between interstitial fluid like lymph and oxygen carrying fluid like blood as in most vertebrates. They use a copper-based oxygen carrier molecule instead of the iron-based hemoglobin, which floats freely around in the hemolymph and is not bound to blood cell proteins. They do not have a dedicated and separate branch of their circulatory system just to oxygenate; internal organs (and cells) are simply bathed in this fluid; many arthropods (e.g., insects) oxygenate directly from the air through tubules connected to holes (spiracles) in their body segments. Their nervous system is 'ladder-like' on their ventral surface, and their brains formed around the esophagus from fused segment nerve ganglia.

An arthropod is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and jointed appendages. Arthropods are members of the phylum Arthropoda (from Greek ἄρθρον árthron, "joint", and ποδός podós "foot", which together mean "jointed feet"), and include the insects, arachnids, crustaceans, and others. Arthropods are characterized by their jointed limbs and cuticles, which are mainly made of α-chitin; the cuticles of crustaceans are also biomineralized with calcium carbonate