The dust bowl is the best example of which push or pull factor. Environmental push factor
It is necessary for
nurses to join programs about growth and development because this is essentially
what they are dealing with everyday. Since they deal with different age groups,
growth and development is important to know what is normal in all age groups in
order to identify possible abnormalities their patients might face.
lol you spelled characteristics wrong and the aswer is they are made of proteins and glycoproteins
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:
The clavicles and the cranial bones of the skull develop from a fibrous membrane. This process is known as intramembranous ossification.
