if the passing of five half lives leaves 25.0mg of strontium -90 sample how much was a present at the beginning

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

that is wrong, its not thymus.

c is the answer to this question. altitude affects the weather because air molecules evaporate.