So let's say we have one of these myosin heads. So when I say a myosin head, this is one of the myosin heads right here and then it's connected, it's interwound, it's woven around. This is the other one and it winds around that way. Now let's just say we're just dealing with one of the myosin heads.
A stamen is a male reproductive organ of a flower. It produces the pollen. The stamen has two parts: the anther, and the stalk. The stalk is also called the filament.
Structure. A stoma is the opening on a plant leaf, but there are specialized cells surrounding each stoma that control how open or closed it is. These specialized cells are called guard cells, and they are triggered by a number of factors, such as sunlight, humidity, temperature, and internal plant chemistry.