Where is it????? I don’t see anything
The correct answer is: B) nodes of Ranvier.
Schwann cells are non-neural cells that are part of the peripheral nervous system with supportive function for neurons. In myelinated axons, Schwann cells form the myelin sheath that is not continuous. The tiny gaps between adjacent Schwann cells are called nodes of Ranvier.
Nodes of Ranvier are the spots where the axolemma (the cell membrane of an axon) is exposed to the extracellular space. Because of the presence of nodes, nerve conduction in myelinated axons is referred to as saltatory conduction.
Answer:
Steric hindrance in the cis orientation causes the chain to take on a more bent shape. Most natural unsaturated fatty acids are in the cis conformation. As can be seen in Figure 2.327, the cis fatty acids have a more of kinked shape, which means they do not pack together as well as the saturated or trans fatty acids
Explanation:
Answer: The techniques used in population depends on the type of ecosystem. These include the use of traps/footprints, the use of Quadrant, lincoln index and phitographic techniques among others.
Explanation: Using a quadrant method, the population size is given as
N = (Area of sites x total number of individuals) ÷ (Area of the Quadrant x number of throws)
To use this, the area of the sites must have the same unit as the area of the Quadrant. It is used for actively mobile organisms and in a grassland ecosystem. Organisms within the quadrant will be counted.
The limitations are;
It is not suitable for slant topography.
It is not suitable for non-uniform vegetation.
Answer:
Your body stores energy in the form of glucose. When your body needs that energy, it is used.
Explanation: