[DOC] [TLE] Arthropod - Wikipedia [PAR] An arthropod is an invertebrate animal having an exoskeleton (external skeleton)
, a segmented ... One arthropod sub-group, insects, is the most species-rich 
member of all ... (includes spiders and scorpions), Crustacea (shrimps, lobsters, 
crabs, etc.) ... The exoskeletons of most aquatic crustaceans are biomineralized 
with... [DOC] [TLE] Arthropods [PAR] Arthropods have segmented bodies, like the annelid worms. These segments 
have become specialized, however, with one pair of jointed appendages ... often 
with intricate mouthparts and elaborate sensory organs, including statocysts, ... 
Despite their aquatic diversity, there are very few terrestrial crustaceans, just as 
there... [DOC] [TLE] Arthropods [PAR] Arthropod bodies are segmented like those of annelids, but the individual 
segments ... pendages include legs, antennae, and a complex array of 
mouthparts. [DOC] [TLE] Arthropoda facts, information, pictures | Encyclopedia.com articles ... [PAR] Get information, facts, and pictures about Arthropoda at Encyclopedia.com. ... 
These include a pair of chelicerae , a pair of pedipals, and four pairs of legs. ... 
The subphylum Crustacea includes lobsters, crabs, shrimp, barnacles, and other 
... from centipedes in that each segment has two pairs of legs rather than just one. [DOC] [TLE] Biology of Animals & Plants - Arthropods - FM Faculty Web Pages [PAR] No one knows how many species of roundworms there are, in contrast, ... It may 
be that arthropods are descended from some sort of segmented ... or the 
arachnids (8 walking legs), including spiders and scorpions, or the insects (6 legs
). ... crabs, and shrimp, as well as many types of planktonic animals which float in 
the... [DOC] [TLE] CHAPTER 46: ARTHROPODS [PAR] as the more populous aquatic ones. The most familiar crustaceans are the 
decapods (lobsters, crabs, and shrimp) as they are important human ... Some 
insects possess wings, although these structures ... A. Arthropod Segmented 
Bodies Show Relationship to Annelids. 1. ... Include spiders, horseshoe crabs, 
sea spiders b. [DOC] [TLE] arthropod | animal phylum | Britannica.com [PAR] May 13, 2016 ... The body is usually segmented, and the segments bear paired, ... About one 
million arthropod species have been described, of which ... In the sea, large 
crustaceans such as crabs and shrimps are common bottom-dwelling arthropods. 
... of arthropods, including mites, spiders, false scorpions, myriapods,... [DOC] [TLE] Arthropods - SlideShare [PAR] Sep 1, 2010 ... These segments piggyback on one another, like a series of cars in a train. ... The 
five branches of the arthropod tree Modern arthropods include insects, spiders, 
centipedes, shrimp ... Any species descended from that ancestor is an arthropod. 
... The ancestors of arthropods were ancient aquatic segmented... [DOC] [TLE] Insects and Their Relatives - NM Pest Management Services [PAR] Their descendants are the algae, bacteria and fungi living today. ... In this group 
the "arthropods" include spiders, mites, ticks, millipedes, centipedes, ... This class 
mostly includes aquatic crabs, lobsters, and shrimp as well as crustacea ... worm-
like, but they appear more flattened; with one pair of legs per segment; antennae
... [DOC] [TLE] The First Arthropods - NC State University [PAR] Nov 11, 2011 ... At one time, the Onychophora or velvet worms were suggested as a possible ... 
These mostly-tropical invertebrates, with only 75 extant species, live on the forest 
floor ... Like annelid worms, the Onychophorans have segmented bodies ... with 
the arthropods, including antennae, an open circulatory system,... [DOC] [TLE] Superphylum Ecdysozoa | Biology II [PAR] The cuticle provides a tough, but flexible exoskeleton tht protects these ... The 
arthropods, one of the most successful taxonomic groups on the planet, are ... to 
be a clade consisting of all evolutionary descendants from one common ancestor
. .... aquatic crustaceans utilize gills, terrestrial chelicerates employ book lungs, 
and... [DOC] [TLE] Arthropods 2 - Scribd [PAR] Mar 4, 1989 ... Any species descended from that ancestor is an arthropod. in the ...

Question: Arthropods, including shrimps & spiders, are descended from aquatic segmented ones of these
Answer: Worms