What information does he need to be able to determine the absolute brightness of the star?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Explain why ecosystem diversity results in species diversity in a healthy biosphere