When you uphold something, you stick up for or support it. Police officers are paid to uphold the law, and crazy Elvis fans uphold their belief that he's still alive out there somewhere. If you reverse the two parts of this word, you get hold up. And that's exactly what upholding is: holding up or supporting an idea or practice. You might uphold your dog's innocence, even though it's pretty obvious he dug up the neighbor's flower bed.
Chelicerates (Chelicerata) are a group of arthropods that includes harvestmen, scorpions, mites, spiders, horseshoe crabs, sea spiders, and ticks. There area about 77,000 species of chelicerates alive today.
Characteristics. As with all arthropods, chelicerates are characterized by the possession of a segmented body, a pair of jointed appendages on each segment, and an exoskeleton. In the Chelicerata, the body is divided into two parts.ometimes they are excluded from the Chelicerata but grouped with them as the Cheliceriformes. The largest class of extant chelicerates is Arachnida, which includes spiders, ticks, mites, daddy longlegs, and scorpions, among others.