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.
The bodies of chelicerates are divided into two parts: a fused head and thorax, and an abdomen. They have no antennae, and most have four pairs of jointed legs. They are named for their first pair of appendages, which are modified as clawlike fangs used for feeding. The chelicerates include the arachnids, the marine horseshoe crabs, and the sea spiders. The mandibulates have one or two pairs of appendages that function as antennae on their head, with the next pair modified as jaws for feeding. Included in this group are the crustaceans (crabs, lobsters, crayfish), the millipedes and centipedes, and the insects. The body of insects. A male black-winged damselfly.