Yes, arthropods have a nervous system in a longitudinally positioned nerve bundles or ganglia, with a paired formation across their ventral surface (underside) described as "ladder like", terminating in a brain around the esophagus. As with other animals it controls mouthparts, sensory functions, locomotion, etc.
No they do not.
The Nervous System
Gills and a well developed nervous system
A nerve net or diffused nervous system is called simple nervous system as present in cnidarians .
The nervous system in arthropods has been described as ladder-like, with connected ventral pairs of nerve ganglia, terminating in an esophageal brain. As with many non-arthropods, this nervous network transports or co-ordinates reflexes, mobility, sensory stimuli, etc.
normal microbiota are present in central nervous system only
An arthropod's nervous system is described as 'ladder-like' on their ventral surface or underside, with paired nerve ganglia on each segment, and their brains formed around the esophagus from fused segment nerve ganglia.
They have a central nervous system, I think.
It is not likely that the annelids evolved from the arthropods is as much as they are the much simpler of the two groups of organisms. The arthropods have a well developed open circulatory system, segmented muscles and a complex nervous system (including eyes and chemoreceptors, the antennae) and an exoskeleton.
Yes, the central nervous system (which includes the brain and spinal cord) and the peripheral nervous system (which includes all nerves outside the central nervous system) together make up the nervous system in the body.
Yes, arthropods develop from three embryonic germ layers: ectoderm, mesoderm, and endoderm. The ectoderm forms the outer body covering and nervous system, the mesoderm gives rise to muscles and the circulatory system, and the endoderm develops into the digestive tract. This triploblastic organization is a characteristic feature of bilaterian animals, which includes arthropods.
Moths are arthropods because they have jointed legs and a chitin exoskeleton and birds are chordata because they have a backbone and nervous system.