The main provisions of the Endangered Species Act include all of the following EXCEPT ? the federal government may not carry out a project that would jeopardize endangered species.

the compilation of a list of endangered and threatened species, and prepare a recovery plan for each.

one may not catch or kill, uproot, sell or trade any endangered or threatened species.

individuals may not destroy the habitats of endangered species..

The study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

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).