Answer :
Two body segment would best indicate that a particular arthropod was a member of subphylum chelicerata.
What is body segment in animal?
segmentation in biology is a division of some animals and plants body plan's onto a series of repetitive segments. This article of focuses on the are segmentation of animal to the body plans, specifically the using of the examples are- taxa Arthropoda, Chordata, and Annelida.
Sol-
The trait that would best indicate that a particular arthropod was a member of subphylum chelicerata is that it possess two body segments instead of three; a fused head and thorax (cephalothorax), and an abdomen (opisthosoma). Their segmented body with jointed limbs is covered in a cuticle made of chitin and proteins. The subphylum chelicerata includes the arachnids, horseshoe crabs, scorpions and related forms.
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