The "powerhouse" of the cell produces atp energy in the:

List two limitations of natural selection

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

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