a junk is a van
A Chinese Junk is a Chinese sailing ship built from an ancient design and still in use today.
a van or ship
A junk is a type of Chinese sailing ship that has been used historically for transportation and trade purposes. Junks have distinctive designs, with a flat bottom, high stern, and fully battened sails.
Exocytosis is a form of active transport.
Endocytosis is a form of active transport.
Exocytosis is a form of active transport.
Because satellites are blown up, forming debris, which is called space junk
Passive Transport
road transport
If your cars are junk then you are best served taking them to a local scrap or junkyard. A key cost for scrap cars is transport, so even if you found a better price online you'd lose on transport costs.
No. Endocytosis requires the cell to expend energy, therefore it is a form of active transport.
No, It is still junk mail but remember...it keeps the cost of your stamps way down.
Facilitated diffusion, or diffusion through ion channels, is not a form of active transport. It is a spontaneous passive transport.