What are the steps to manipulate columns and rows in a spreadsheet?​

preservation because he preserves part of the land and preserves means save

explanation:

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.