ينتييزبو تبزينبتذرقبنخوب به رد ب بت
The answer is; opioids
These painkillers relieve pain by competing with neurotransmitters in binding neurotransmitter receptors in the synapse. However, they don’t induce an impulse hence block the receptors from neurotransmitters. This working principle, however, is also problematic because it causes slow breathing because the drugs calm nerve activity even that which controls your breathing.
1. The right answer is Vacuoles.
Vacuoles is a characteristic organelle found in plants and fungi.
In addition to the important role for cell turgor (regulation of the shape of the cell by osmotic pressure), the huge vacuole that exists in most cells plays multiple roles of waste storage, sometimes reserve and most often maintenance of cell composition.
2. The right answer is cell wall.
The wall is the outermost envelope of the plant cell. It is essentially composed of carbohydrate polymers, cellulose and pectin, proteins and possibly other compounds of phenolic nature (lignin and suberin). The wall is composed of three essential parts: the middle lamella, the primary wall and the secondary wall.
Biologists use plasmids to join two DNA molecules together.
