What is an airshed?
A. the geographic area that define the flow of water and sediment
B. the sources of air pollution in a given area
C. area of forest producing a certain amount of oxygen
D. the interface between the atmosphere and the hydrosphere
E. the geographic area that produces air pollutants likely to end up in a waterway
Ans: E. the geographic area that produces air pollutants likely to end up in a waterway
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Which of the following statements is CORRECT about active transport?
A. It requires energy. B. It is an active process in which molecules move from a region of lower concentration to one of higher concentration. C. It requires integral proteins. D. It is necessary to maintain solute gradients across a membrane. E. All of the choices are correct.
Imagine you are a doctor and you are presented with a female patient who has been unable to get pregnant despite 2 years of trying with the same partner. Rank the following factors from most important (#1) to least important (#4) in your determination of the cause of her apparent infertility.
a. Her STD history b. Her hormone levels c. Her partner's age d. Her age
A commensalism bacterium
A) does not receive any benefit from its host B) is beneficial to its host C) may also be an opportunistic pathogen D) isn't capable of causing disease in its host E) always causes disease in its host
The amount of available energy that can be used to do work is called
A. enthalpy. B. heat. C. free energy. D. entropy. E. kinetic energy.