What does the term cephal- mean? * abdomen
chest
thorax
O head
Another word for the chelicerae which are located on Arachnids is:

graph question answered .. you think better when you are relaxed and happy

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.