The hormone erythropoietin causes _____
a. increased heart rate c. red blood cell formation
b. deeper breathing d. all of these
C
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Many plants wind up with a Na+ concentration that is considerably lower than that of the surrounding soil. What plays a key role in allowing for such a difference to exist?
a. endodermis b. tonoplast c. aquaporin d. water potential
Which of the following diseases do you think is most likely to be underreported?
A) Hantavirus pulmonary syndrome B) Severe acute respiratory syndrome-associated coronavirus disease (SARS) C) Chlamydia trachomatis D) Malaria
CO2 and other gases, which absorb the longer wavelengths of infrared light and radiated heat from Earth, are responsible for causing the
A. ozone layer depletion. B. acid rain. C. decreased biodiversity. D. greenhouse effect.
The enzymes and electron carriers involved in electron transport and oxidative phosphorylation are located in the ________ membrane of the mitochondrion.
A. neither inner nor outer B. outer C. inner D. inner and outer