Mirror neurons fire demonstrates the ability of primates to empathize with another organism.
Mirror neurons are a class of neurons that modulate their activity both when an individual executes a specific motor act and when they observe the same or similar act performed by another individual.
Recent studies have shown that the mirror neurons have been hailed as a cornerstone of human empathy, language, and other vital processes.
These neurons are initially found as motor command neurons present in the frontal lobes of the brain and the prefrontal areas of the brain.
These are neurons which fire when a person moves and these are regular motor command neurons, orchestrating a sequence of muscles that allow the person to move something or do some other action.
A subset of these neurons also fire when that person simply watches another person move and do exactly the same action. So these neurons are performing a virtual reality simulation in the brain.
Another example of this is phantom limb.
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Three of the four nitrogenous bases that make up RNA — adenine (A), cytosine (C), and guanine (G) — are also found in DNA. In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine (Figure 3). ... (Remember, DNA is almost always in a double-stranded helical form.)
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Answer:
With microscope.
Explanation:
Every cell has a selective permeable membrane in which smaller molecules can pass whereas bigger molecules stays outside the cell which can be seen in the cell with the use of microscope because it only occurs inside the cell. The movement of ions or molecules in the cell through a semi permeable membrane is called Osmosis. The movement of ions or molecules sometime needs energy we called it active transport and sometimes it moves without the use of energy is known as passive transport.
