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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 arthron, "joint", and ποδός podos "foot", which together mean "jointed feet"), and include the insects, arachnids, crustaceans, and others
The Mollusca, common name molluscs or mollusks,[note 1] is a large phylum of invertebrate animals. There are around 85,000 recognized extant species of molluscs. This is the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. Molluscs are highly diverse, not only in size and in anatomical structure, but also in behaviour and in habitat.
crustacean are various predominantly aquatic arthropods of the class Crustacea, including lobsters, crabs, shrimps, and barnacles, characteristically having a segmented body, a chitinous exoskeleton, and paired, jointed limbs
Amollusks is a numerous chiefly kinds of marine invertebrates of the phylum Mollusca, typically having a soft unsegmented body, a mantle, and a protective calcareous shell and including the edible shellfish and the snails.
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What group of arthropods are snails in?
Snails aren't arthropods, they're molluscs. Other phylum.
Which animals has bule blood?
Most molluscs and some arthropods have blue coloured blood.
Do pearls come from arthropods?
Pearls come from pearl oysters which are bivalves belonging to phylum Mollusca (the molluscs); a different phylum than Arthropoda (the arthropods).
Are Mollusks segmented worms and arthropods Protostomes?
Yes, molluscs fit into the group known as protostomes.
What is the difference between molluscs and nematodes?
Nematodes MolluscsLongitudinal musclesMuscular footPseudocoelomatesCoelomatesnever has shell some has shell
Does Arthropods have a rigid outer covering called mantle?
No, the rigid outer covering of arthropods is usually called the exoskeleton. In biology the mantle is a major anatomical component of a different phylum - molluscs, the tissue which contains the internal organs and in many molluscs responsible for secreting the mineralized outer shell.
What is an extinct group of marine arthropods?
Trilobites, and eurypterids (giant marine scorpions). Ammonites are not arthropods but molluscs.
What are the group of invertebrates?
In total there are 8 groups of invertebrates:-Insects-Arachnids-Crustaceans-Millipedes-Worms-Molluscs with shells-Molluscs without shellsThe groups of Invertibrates are Coelenterates, Echinoderms, Mollusks, Arthropods, Annelids, Plathelminths, Poriferas and Nematodes.
Do arthropods and mollusks have lungs?
No for arthropods; yes for some molluscs. The larger aquatic arthropods like lobsters and crabs accomplish gas exchange using gills. Smaller ones like the land-based insects have holes (spiracles) in the exoskeleton and a tube system to facilitate gas exchange necessary for respiration. In this case, unlike mammals which use lungs to oxgenate blood which is pumped to the tissues, the tracheal tubes from the spiracles deliver oxygen directly to the tissues. Aquatic molluscs have gills for gas exchange whereas molluscs adapted to live on land like snails do have a lung.
What are the phyla's?
In no particular order: Chordates Echinodermata Platyhelminthes (Flatworms) Nematodes (Roundworms) Annelids (Segmented Worms) Arthropods Porifera (Sponges) Molluscs (Shells)
How many species does a vet study?
Kingdom Animalia... Porifera;coelenterata;platyhelminthes;aschelminthes;Annelids;arthropods;molluscs;echinodermata;chordata Hope this helps
What is the difference between octopus and shark?
Octopi are cephalopod molluscs, have 8 legs and are often depicted squirting ink when they get cranky. Sharks are fish.
