Appendage - Wikipedia
An appendage (or outgrowth) is an external body part or natural prolongation that protrudes from an organism's body such as an arm or a leg. Protrusions from single-celled bacteria and archaea are known as cell-surface appendages or surface appendages.
The origin and evolution of animal appendages - PMC
Animals have evolved diverse appendages adapted for locomotion, feeding and other functions. The genetics underlying appendage formation are best understood in insects and vertebrates. The expression of the Distal-less (Dll) homeoprotein during ...
Appendage - Simple English Wikipedia, the free encyclopedia
An appendage is a part of animals attached the main body. Many arthropods have appendages on each, or most, of their segments. Millipedes, for example, have many segments, and almost all carry two legs. Insects have exactly six legs, two on each segment of the thorax. Antennae (feelers) attached to their heads are another type of appendage.
Fossils, genes and the evolution of animal limbs | Nature
1997年8月14日 · The morphological and functional evolution of appendages has played a crucial role in the adaptive radiation of tetrapods, arthropods and winged insects. The origin and diversification of fins,...
Appendage - Biology Simple
2024年3月1日 · An appendage is a limb or extension attached to the main body of an organism. It can refer to structures such as arms, legs, wings, or antennae. Appendages play various roles in the function and movement of living creatures. They can be used for grasping, locomotion, communication, or sensory perception.
The origin and evolution of animal appendages - PubMed
1997年5月13日 · Animals have evolved diverse appendages adapted for locomotion, feeding and other functions. The genetics underlying appendage formation are best understood in insects and vertebrates.
Appendage - bionity.com
An appendage is an external body part, or natural prolongation, that protrudes from an organism's body, such as a vertebrate's limbs. In invertebrate biology, "appendage" is a general term that covers any of the homologous body parts that may extend from a body segment.
Examples of appendages are the oral tentacles of hydra and sea anemones, as are echinoderm tube feet, or the retractile stalks supporting the eyes of most terrestrial slugs and snails. But virtually all research on appendages carried out so far from. *Address correspondence to: Dr. Alessandro Minelli.
Morphogenesis of Epithelial Appendages: Variations on Top of a …
Epithelial appendages are distinct at several different levels: among different classes (e.g., chicken feather and reptile scale); species (chicken and duck feather); locations (hair and teeth); and types (flight and down feather).
Appendage facts for kids - Kids encyclopedia
2023年10月16日 · Appendages are parts of animals attached the main body. Many arthropods have appendages on each, or most, of their segments. Millipedes, for example, have many segments, and almost all carry two legs. Insects have exactly six legs, two on each segment of the thorax. Antennae (feelers) attached to their heads are another type of appendage.
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