Channel Protein.
Aquaporins
Ureter. The urethra connects the bladder to the outside world.
They use their long, tubelike tongues like straws to suck the nectar out of the flowers and they store it in their "honey stomachs". Bees actually have two stomachs, their honey stomach which they use like a nectar backpack and their regular stomach. The honey stomach holds almost 70 mg of nectar and when full, it weighs almost as much as the bee does. Honeybees must visit between 100 and 1500 flowers in order to fill their honey stomachs.The honeybees return to the hive and pass the nectar onto other worker bees. These bees suck the nectar from the honeybee's stomach through their mouths. These "house bees" "chew" the nectar for about half an hour. During this time, enzymes are breaking the complex sugars in the nectar into simple sugars so that it is both more digestible for the bees and less likely to be attacked by bacteria while it is stored within the hive. The bees then spread the nectar throughout the honeycombs where water evaporates from it, making it a thicker syrup. The bees make the nectar dry even faster by fanning it with their wings. Once the honey is gooey enough, the bees seal off the cell of the honeycomb with a plug of wax. The honey is stored until it is eaten. In one year, a colony of bees eats between 120 and 200 pounds of honey.
A system of tubelike structures that transport nutrients
A vascular plant contains bundles of tubelike cells which transport water and food throughout the plant
A follicle is the tubelike structure from which hair grows.
tubular
tubelike streucture
Smooth Muscles line the walls of tubelike structure such as the gastrointestinal tract, the urinary system, the blood vessels and the bronchi of the lungs.
Hair Follicle
Hair Follicle
Moisture
proboscis
Esophagus
A landspout is a tornado that is not assciated with a mesocyclone, often taking on a tubelike appearance.