Which one of the following describes the process of aerobic celular respiration? 0 A
a process that uses nitrogen molecules from the air to make nitrogenous compounds in ing things
ОВ.
a process of energy conversion that releases energy from food in the presence of oxygen, forming new compounds
o с
a process of energy conversion that captures light energy and transforms it into chemical energy-
D. a process of energy transfer that converts liquid water into water vapor

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.

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).