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.
The genus contains 31 recognized species distributed worldwide, including the North American black widows (L. mactans, L. hesperus, and L. variolus), the button spiders of Africa, and the Australian redback spider. Species vary widely in size.