Asteroidea (Starfish)
Location: Aquarium in Chicago, USA
Vestigial structure: plica semilunaris

Picture 2 (right):
Fragaria (Strawberry) and Allium cepa (Onion)
The roots of both plants are in the large pipes because water (mixed with other artificial "ingridients") flows through the pipe, giving the roots necessary amount of water. The people maintain water amount and frequency at which the plants are watered. (The onions are in the back, the strawberries are in the front.) The plants are in a greenhouse, which is a technological "invention".
Location: Disney World (Epcot, I think), Florida
Oriental bittersweet, Celastrus orbiculatus, an invasive plant, was introduced to America and closely resembles American Bittersweet, but can be distinguished by its more rounded leaves. 






This hibiscus, rosa-sinensis, shows the anthers prominently displayed. These anthers are connected filaments which are then connected to the stigma and are crucial the the reproduction of the flowers. The stamen, the male part of the flower and the ovule, the female part of the flower, are not visible in this photo, but they are also crucial to the reproduction process.