Answer:
i) iv) ii) iii)
Explanation:
The excitable cell begins being in a resting state, with a negative charge, -70 mV. First (i) there is a stimulus of influx of sodio into the cell, if the stimulus is strong enough and exceeds -55 mV, the threshold potential, then an action potential will occur. (iv) A strong influx of sodium that deporalizes the cells causes a change to a positive charge in the cell. (ii) Then potassium efflux from the cell in large quantities, which repolarizes the cell. (iii) With a continuous efflux of potassium the cell can become more negative than the resting potential, this is called hyperpolarization.
Eventually, the land and oceans will take up most<span> of the </span>extra carbon dioxide<span>, but </span>as<span> much </span>as<span> 20 percent may remain in the atmosphere for many thousands of years. The changes in ... The </span>increased <span>temperature results in </span>higher<span> evaporation </span>rates<span> and a wetter atmosphere, which leads to a vicious cycle of further warming.</span>
The reason why scientits works in gropua is because to share there hyposthiese and to see if others thinks likes them and if not then they decsions why or why not. Working in groups makes them stronger as a team to creat nww things and ideas.
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