An organelle is a unique part of a cell that has a specific function. The term is a combination of the word organum, which means instrument or engine, and the suffix -elle, which means... Star Gazing
Female redback spider in the nest showing off her red back. The nest contains a few hundred eggs and is about 12 mm (1/2) in diameter. Female redback spider smiling to the camera, ready to protect her nest.
Opiliones are arachnids, but not spiders. They have no venom glands at all and are absolutely not venomous. The nickname 'daddy longlegs' may also refer to a crane fly, which is a true fly and a member of the order Diptera. Crane flies do not pose a threat, either. Sometimes, the name 'daddy longlegs' is used for another group of arachnids, the spiders of the family Pholcidae. These spiders are also commonly called cellar spiders and they do have venom glands.