4 Read the following sentence: “As she galloped around her shady enclosure,
visitors marveled at the unusual animal with big, upright ears like those of a
donkey, stripes like those of a zebra, and the silhouette of an antelope."
In this sentence the word marveled means
А
shouted with excitement
B
yawned in boredom
stared in amazement
jumped with joy

Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?

Which of the following is not a potential result of deforestation?

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).