Diffusion is important because:
<span>a) the human cell can obtain nutrients and gases </span>
<span>b) excrete metabolic wastes </span>
<span>c) maintain a suitable pH and ionic concentration within the cell for enzyme activity. </span>
Answer:
B
Explanation:
it should be a whole number and not 1/2
The second one hope that helps
Answer:
A line of thunderstorms in the provides moisture and nitrogen to the crops. The energy in the lightning breaks the N2 molecules apart so they can combine with the oxygen to make nitrogen oxides that can be dissolved in the rain. These forms of nitrogen are essential nutrients for plants. Rain from these storms provide far more to the crops than an equal amount of irrigation can do.
