Puberty phase or the getting old phase
Answer:
Objects do not get cold, they
=》 lose thermal energy
Explanation:
if the temperature around any object is cool, or if the object is in contact with cold object, the heat ( thermal energy ) transfers from that object to cooler environment, and that's how the object starts being cold.
The normal membrane potential inside the axon of nerve cells is –70mV, and since this potential can change in nerve cells it is called the resting potential. When a stimulus is applied a brief reversal of the membrane potential, lasting about a millisecond, occurs. This brief reversal is called the action potential
<span>A stimulus can cause the membrane potential to change a little. The voltage-gated ion channels can detect this change, and when the potential reaches –30mV the sodium channels open for 0.5ms. The causes sodium ions to rush in, making the inside of the cell more positive. This phase is referred to as a depolarisation since the normal voltage polarity (negative inside) is reversed (becomes positive inside). </span>
<span>Repolarisation. At a certain point, the depolarisation of the membrane causes the sodium channels to close. As a result the potassium channels open for 0.5ms, causing potassium ions to rush out, making the inside more negative again. Since this restores the original polarity, it is called repolarisation. As the polarity becomes restored, there is a slight ‘overshoot’ in the movement of potassium ions (called hyperpolarisation). The resting membrane potential is restored by the Na+K+ATPase pump.</span>
Answer: Function
Explanation: The reason some objects or a process that occurred in a system that developed through natural selection.
<span>Creativity helps a scientist by allowing him or her to
write more interesting lab reports, draw better diagrams for reports, look at old problems in new ways and pick interesting observations to include as data.</span>