(Score for Question 5: ___ of 2 points) 5. Describe what occurs at mid-ocean ridges.

Study this map that shows the motion of the Earth's plates.

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6. Find the Nazca plate and the South American plate. How are they different? Are they moving toward or away from each other?

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7. How is the Nazca plate moving in relation to the Pacific plate?

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8. How are convection currents in the mantle (geosphere) and in the oceans (hydrosphere) similar? How are they different?

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).

This is a biological reaction due to a stimulus. i need this quickly !

Which factors changed throughout the mice experiment