In a salt marsh in georgia the quantity of solar radiation reaching the ground during the summer is 7,000,000 cal/m2/day. The gross productivity of the producers in the salt marsh (mostly microscopic algae) is 0.0040 g/cm2/day. The average rate of respiration (the respiration requirement) is 35% of the gross primary productivity. Ecologists have found that 1 g of salt marsh producers (the algae) is equivalent to 2,920 calories. A. Calculate the net primary productivity of the system.

B. Calculate the efficiency of photosynthesis.

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.

First idea: suddenly, women were leaving their homes to cycle and socialize on country roads and city streets. —wheels of change, sue macy second idea: it was not a stretch for some cyclists to see the possibility of a larger role for women in the world. —wheels of change, sue macy what type of graphic organizer would best represent the connection between these two ideas? 1) a t-chart that separates ideas into two different categories 2) a chronology that shows 3) a sequence of several events a cause-and-effect graphic that shows how one idea led to another 4)a problem-solution graphic that presents a problem and a solution to the problem

What are potential sources of error in marta’s experiment