The movement of ions and other atomic or molecular substances across cell membranes without the need for energy input is known as:
-passive transport.
-voltage.
-isotonic movement.
-diffusion.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

it would lead to upper respiratory infections and pneumonia.

genetic variation will increase because of a new habitat and food source.

explanation: