Arthropod - Wikipedia
网页Arthropods (/ ˈɑːrθrəpɒd / ARTH-rə-pod) [22] are invertebrates in the phylum Arthropoda. They possess an exoskeleton with a cuticle made of chitin, often mineralised with calcium carbonate, a body with differentiated (metameric) segments, and paired jointed appendages.
Arthropod | Definition, Examples, Characteristics, Classes ...
网页2024年9月9日 · arthropod, (phylum Arthropoda), any member of the phylum Arthropoda, the largest phylum in the animal kingdom, which includes such familiar forms as lobsters, crabs, spiders, mites, insects, centipedes, and millipedes. About 84 percent of all known species of animals are members of this phylum.
Arthropod - Definition, Characteristics, Examples and Types ...
网页2019年10月4日 · Arthropods are a lineage of life that developed skeletons on the outside – their hard shells, made of a material called “chitin” – instead of on the inside for structural support.
Arthropod structure and classification | Britannica
网页arthropod, Any member of the largest phylum, Arthropoda, in the animal kingdom. Arthropoda consists of more than one million known invertebrate species in four subphyla: Uniramia (five classes, including insects), Chelicerata (three classes, including arachnids and horseshoe crabs), Crustacea (crustaceans), and Trilobita (trilobites). All ...
11.10: Arthropods - Biology LibreTexts
网页The arthropod body consists of three segments with a hard exoskeleton and jointed appendages. Terrestrial arthropods have adaptations for life on land, such as trachea or book lungs for breathing air. The earliest arthropods were trilobites. The earliest land arthropods were millipedes.
Arthropod - Exoskeleton, Segmentation, Jointed Appendages
网页2024年9月9日 · Arthropod - Exoskeleton, Segmentation, Jointed Appendages: Arthropods have jointed exoskeletons consisting of a thin, outer protein layer called the epicuticle and a thick, inner, chitin–protein layer called the procuticle.
A closer look at the arthropod branches - Understanding Evolution
网页A closer look at the arthropod branches. Arthropods can be divided into five major groups, each with its own distinctive characteristics. Tree adapted from Giribet, G., Edgecombe, G.D., 2019. The Phylogeny and Evolutionary History of Arthropods.