What is the literal meaning of arthropod?

An arthropod is an animal with no internal spine, a body made of joined segments, and a hard covering, like a shell. … The Modern Latin root is Arthropoda, which is also the name of the animals’ phylum, and which means “those with jointed feet.”

What is Arthropoda and Mollusca?

Arthropoda. Mollusca. Arthropods are animals having a segmented body with paired appendages or legs. Molluscs are animals having soft bodies usually covered in mucus. The arthropods have exoskeleton covers on their body.

Which of the following belong to arthropods?

Many familiar species belong to the phylum Arthropoda—insects, spiders, scorpions, centipedes, and millipedes on land; crabs, crayfish, shrimp, lobsters, and barnacles in water (Fig. 3.72). Arthropods are considered the most successful animals on Earth.

What is arthropod class 9?

The term “arthropod” means “jointed legs”. The phylum included invertebrates with an exoskeleton and jointed legs, hence named, arthropoda.

What are characteristics of Arthropoda?

All arthropods share these characteristics:
  • Exoskeleton. An exoskeleton is the supporting structure on the outside of the body of an arthropod. …
  • Segmented bodies.
  • Jointed appendages such as mouthparts and antennae.
  • Bilateral symmetry. …
  • Dorsal blood vessel.
  • Ventral nerve cord.

Why are arthropods called arthropods?

Arthropods lack locomotory cilia, even in the larval stages, probably because of the presence of the exoskeleton. The body is usually segmented, and the segments bear paired jointed appendages, from which the name arthropod (“jointed feet”) is derived.

Which fish belong to Arthropoda?

Silver fish (Lepisma) belongs to Class Insecta of Phylum Arthropoda.

Where are phylum Arthropoda found?

Arthropods are found in virtually every known marine (ocean-based), freshwater, and terrestrial (land-based) ecosystem, and vary tremendously in their habitats, life histories, and dietary preferences.

What is unique about the appendages in arthropods?

As mentioned earlier, the appendages of arthropods are distinct from those of annelids in that they are jointed. In some species, the appendages are also branched, a condition called biramous. Unbranched appendages are called uniramous. Jointed appendages allow the animal much greater flexibility and range of movement.

What does arthropod mean in biology?

Definition of arthropod

: any of a phylum (Arthropoda) of invertebrate animals (such as insects, arachnids, and crustaceans) that have a segmented body and jointed appendages, a usually chitinous exoskeleton molted at intervals, and a dorsal anterior brain connected to a ventral chain of ganglia.

What distinguishes crustaceans from other arthropods?

Crustaceans are generally aquatic and differ from other arthropods in having two pairs of appendages (antennules and antennae) in front of the mouth and paired appendages near the mouth that function as jaws.

What do u mean by appendages?

Definition of appendage

1 : an adjunct to something larger or more important : appurtenance. 2 : a usually projecting part of an animal or plant body that is typically smaller and of less functional importance than the main part to which it is attached especially : a limb or analogous part (such as a seta)

What is meant by jointed appendages?

A jointed appendage can be defined as the growth from the body of organism having joints in it. Jointed appendages is common charateristic of arthropoda. Jointed appendages in arthropodes may include legs, wings and mouth parts.

What are arthropods appendages?

Arthropods have segmented bodies. Each body segment usually has a pair of appendages. The appendages can be antennae, wings, legs, or mouthparts! … Each body segment is covered with a hard exoskeleton called a cuticle.

What does male appendage mean?

(biology) A part or organ, such as an arm, leg, tail, or fin, that is joined to the axis or trunk of a body. … The definition of an appendage, in relation to the body of a human or animal, is any part protruding from the torso or trunk.

What are lateral appendages?

The lateral appendage is an external body part that protrudes from an organism body. Flagella in bacteria is an example of the lateral appendage. They can never be seen under a microscope. They are helical in shape composed of subunits of protein.

What is the definition for chitin?

chitin. / (ˈkaɪtɪn) / noun. a polysaccharide that is the principal component of the exoskeletons of arthropods and of the bodies of fungi.

Where are your appendages?

An appendage is a part of the body of a person or animal, for example a leg or a wing, that sticks out from the central part of the body. Their bodies have appendages which look like wings.

Is tongue an appendage?

A projection, or slender appendage or fixture. The tongue of a buckle, or of a balance. A long, narrow strip of land, projecting from the mainland into a sea or lake.

What is the meaning of Ungenial?

Definition of ungenial

: not genial : not pleasant or cheerful … in the ungenial climate and soil of New England …—

How many appendages are present in prawn?

The prawn carries, in all, nineteen pairs of appendages of which the first five are cephalic, the following eight are thoracic, and the remaining six are abdominal. Each of the first two segments bears a pair of prehensile antennae or feelers.