N Which of the following statements best describes why most animal fats are formed from saturated fatty acids?
The hydrocarbon chains of saturated fatty acids are straight so they can be tightly packed to store more energy in
less space.
The hydrocarbon chains of saturated fat cannot pack together closely, which keeps the animal from becoming too
large.
The hydrocarbon chains of saturated fatty acids allow fewer hydrogen atoms to bond, which makes the molecule
stable for energy storage.
The hydrocarbon chains of saturated fatty acids have bends so they can be loosely packed to store more energy
in less space

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

The kidney filters potentially toxic substances in the blood, and thus “clears” the blood of those substances. this clearance function is dependent upon and proportional to the diffusion gradient of the substance across filtering capillaries, i.e. if the concentration of the substance is doubled, twice as much will be cleared from each ml of blood that is filtered. suppose that the body produces a constant amount of a substance x per unit of time. the kidneys eliminate substance x at a rate directly proportional to the concentration of the substance and the volume of blood cleared each minute (c): elimination = c × [x], where [x] is the steady-state concentration of substance x. imagine an individual with an initial concentration of x equal to [x]0 who develops kidney disease. her baseline clearance c0 drops to one half of the original (½c0). what is the new steady state concentration of x? (for simplicity, assume that substance x is 100% filtered by the kidney).