Divers, returning from deep dives, can get the bends from nitrogen gas bubbles in their blood. Assume that blood is largely water. The Henry's law constant for N2 in water at 25°C is 86,000 atm. The hydrostatic pressure is 1 atm at the surface of a body of water and increases by approximately 1 atm for every 33 feet in depth. Calculate the N2 solubility in the blood as a function of depth in the water, and explain why the bends occur.

The key to stability is feedback between the reservoir and the fluxes into and/or out of the reservoir. assume that the rate of outflow from a reservoir depends on the size of the reservoir according to the following relationship: outflow rate= k x (size of reservoir), where k is a constant. a reservoir of water has a volume of 5000 liters, and the rate of outflow at steady state is 25 liters per minute. what is k? (give both the numerical value and its units.) what is the residence time? what is the relationship between k and the residence time?

What are igneous intrusions and extrusions

Describe the function of the endomembrane system? what organelles are involved?