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What makes an earthworm not an insect?

That it lacks an abdomen, antennae, compound eyes, exoskeleton, legs, and thorax is a reason why earthworms are not insects.Specifically, all insects have a body divided into a head, thorax and abdomen; compound eyes; an exterior skeleton; a pair of antennae; and three pairs of segmented legs. An earthworm is recognizable by its streamlined body which has muscles, segments and setae. It lacks antennae, jointed legs, and segmented body parts.


What are 3 traits of the class Insecta Phylum Arthopoda?

Three traits of the class Insecta in the phylum Arthropoda are the presence of three pairs of legs, a segmented body with three distinct regions (head, thorax, abdomen), and most insects have wings at some stage in their life cycle.


Do arthropods have a trachea?

yes they have, trachea is thorax and the arthropods usually have three parts, they are head, thorax and abdomen.


What family do Crab Spiders belong to?

Spiders are categorized as such: Kingdom anamalia phylum arthropoda subphylum chelicerata class arachnida order araneae *araneae is the order that houses spiders, when you get to the family level, there are many.


What is the kingdom of arthropods?

The arthropods constitute over 90% of the animal kingdom and are classified in the phylum Arthropoda. They are distinguished from other animals by:an exoskeleton (a skeleton on the outside of the body) body divided into distinct partsjointed legs and appendagesbilateral symmetry (both sides of the body are the same)Class DistinctionsInsects Grasshoppers, butterflies, beetles, ants, etc. 1,000,000 described world species:three body regions: head, thorax, abdomensix legs attached to the thorax (which has 3 segments)adults with one or two pairs of wings attached to the thorax (some have none)two antennaelateral compound eyesArachnids Spiders, scorpions, ticks, mites, etc. 65,000 described world species:two body regions (cephalothorax, abdomen)eight legsno antennaeMouth parts are chelicerae (modified appendages) which in spiders are fangsCrustaceans (technically a subphylum)Classes include crabs, shrimps, lobsters, barnacles, isopods etc. 44,000 described world species:two body regionstwo pairs of antennae5 or more pairs of legsprimarily aquatic, few terrestrialChilopods Centipedes. 2,800 described world species:well-defined headfirst pair of legs modified for envenomationflattened top to bottomone pair of legs per segmentone pair of antennaeDiplopods Millipedes. 10,000 described world species:two pairs of legs per segments, first four segments have 1 pair legsone pair of antennaewell-defined headusually cylindrical.An arthropod is an invertebrate (meaning it lacks a backbone) with an external skeleton, a segmented body, and jointed appendages. Arthropods belong to the Phylum Arthropoda. Insects, arachnids, centipedes and crustaceans are all arthropods.An arthropod is an invertabrate animal that has an exoskeleton, a segmented body, and jointed appendages. An ANTHROPOD is a bipedal humanoid (ie Homo Sapien, Homo Neanderthalus, Homo Habilus, Australopithicene Afarensis, and other hominids). Arthropod is a family which includes insects and spiders.Arthropods are Invertebrates (no backbone)First of all, arthropods are NOT insects, insects are only a type of arthropod.Arthropods are Split into 4 classes/groups.Crustaceans: Have a hard shell (exoskeleton)Many legsNo wingsOne or 2 pairs of antennaeMay live on land or waterExamples: Crabs, Lice, LobsterMyriapods: Segments Present1 or 2 pairs of legs per segmentAntennae (1 pair)No wingsExamples: Centipede, MillipedeArachnids: No antennae2 body parts8 legs (4 pairs)PincersNo wingsExamples: Spiders, Scorpions, Ticks, MitesInsects: Antennae PresentMay have wings6 legs (3 on each side)3 body parts (head, thorax, abdomen)Hope This helps