Jeremy is sitting quietly when the muscles in his left leg begin to “twitch.” This activation of movement in his voluntary muscles is most likely due to the release of the neurotransmitter Acetylcholine .
The primary function of acetylcholine is to carry signals from motor neurons to the body's skeletal muscles.
Answer:
3.Flood
Explanation:
Flood is the catastrophic event which is the main cause of the most weathering and erosion in the least amount of time in this ecoregion because there is no vegetation present in this region and the soil is vulnerable for erosion. Flash-flooding and rapid runoff are agents of erosion in the Trans-Pecos ecoregion of Texas whenever the rainfall occurs. Vegetative is very important for preventing soil erosion so the people of this region has to stop overgrazing in this area in order to avoid more erosion of the soil.
The correct answer is option A, " Energy production"
Reason:
The intracellular communication is the process through which one cell interacts with other cell for proper functioning of the body. The two major types of intracellular interaction involve:
a) Chemical Synapse – In this a chemical released by one cell is detected by receptor on another cell. For example the transmission of sodium and potassium ion across the membrane through the binding of Acetylcholine (Ach) with ACh receptors.
b) Electrical Synapse – In this the cell which are connected through non selective, low – resistance pore between pre- and postsynaptic neurons known as gap junction.
This is the case in option B, C and D.
It explains why planets lie in the same plane, have almost circular orbits, and orbit in the same direction.
