Which of the following human activities can cause eutrophication of lakes? 1) mining 2) deforestation 3) burning of fossil fuels 4) adding fertilizer to soil

Ryan rears sheep for their wool. recently the quantity of wool that ryan gets has diminished. this is because the new sheep are not that wooly. ryan should add which nutrient to their feed so that the sheep becomes more wooly? a. cornb. ironc. cottonseedd. vitamin a

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

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.