Which urine formation process involves the movement of substances from the blood of the peritubular capillaries into the filtrate of the renal tubules?

Which organ has these functions? -removes metabolic wastes from the blood and excretes them-regulates the volume, composition, and pH of body fluids-secretes renin

In males, which of these is an organ of both the reproductive and urinary systems?

Renal arteries transport blood from the ___ to the kidneys.

The term firmware refers to programs embedded into hardware devices. This software only changes when a firmware upgrade is performed.

Gains in ____ permit preschoolers to generate increasingly complex play and problem-solving goals.

By age 6

A particular lake has been isolated and unchanged for more than a thousand years.  One day a company buys the property the lake is on and tries to turn the lake into a self-sustaining fish farm.  Unfortunately, there just aren’t enough nutrients in this lake to support a self-sustaining ecosystem capable of producing large fish so the company goes out of business.  How would you describe this lake’s water quality?

The best system for removing nutrients and other contaminants from water is a/an (?).

A rigid copper tank, initially containing 2 m^3 of nitrogen at 300 K, 1 bar, is connected by a valve to a large supply line carrying nitrogen at 300 K, 20 bar. The valve is opened only as long as required to fill the tank with nitrogen to a pressure of 20 bar. Finally, the nitrogen in the tank is at 310 K. The copper tank, which has a mass of 10 kg, is at the same temperature of the air in the tank, initially and finally. The specific heat of copper is c = 0.385 kJ/kg/K. (a) Assuming ideal gas behavior of the nitrogen, determine the initial mass of nitrogen in the tank, in kg. m_1 =  _______ kg. (b) Determine the final mass. m_2 =  _______ kg. (c) Find the heat transfer to the surroundings from teh tank and its contents, in kJ, ignoring kinetic and potential energy effects. _______ kJ.