Scientists use a system called binomial nomenclature to classify organisms. for example, the goldfish is known as carassius auratus. each of the two names has a different significance. which of the following correctly describes the meaning of the two names? a. carassius is a distant evolutionary ancestor of the goldfish, while auratus is a more recent species. b. carassius is a group of organisms with similar behavior, while auratus is a group with similar structures. c. carassius is a group of organisms with similar external structures, while auratus is a group with similar internal structures. d. carassius is a group of different organisms with similar structures, while auratus is a smaller group of memebers that can only breed with another auratus.

Which sequence correctly shows the path of carbon dioxide during repiration?

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).

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous