Aresearcher is studying the impact of different community activities on natural resources.
which activity is correctly paired with the level of impact it has on natural resources?

a. little impact when humans exclusively use fossil fuels for power needs
b. great impact when humans use alternative water sources for nondrinking functions
c. little impact when humans plant different types of trees for different uses
d. great impact when humans maintain a diverse diet that includes various protein sources

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).

Which nucleotide component contains nitrogen

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?