What would be the consequences if we were to reverse the direction of water flow over the gills of a fish, moving water inward past the operculum, past the gills, the out the mouth? This reversal of water flow would _____
A) reduce efficiency of gas exchange
B) change the exchange of gases in the body from carbon dioxide out and oxygen in to carbon dioxide in and oxygen out
C) increase the efficiency of gas exchange
A
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Which term best describes the nitrogenous base adenine plus the sugar ribose?
A) adenine B) adenosine C) adenosine diphosphate D) adenosine triphosphate E) C followed by A or B
What process will the meristems of the embryo use in order to grow?
a. Photolysis b. Aerobic respiration c. Fermentation d. Anaerobic respiration e. Photosynthesis
In response to temperature changes, cell membranes change state to become more solid or more fluid by undergoing
A) lipid raft formation. B) membrane folding. C) a phase transition. D) transverse diffusion. E) differential scanning calorimetry.
An increased risk for cardiovascular health problems is associated with
A) an elevated level of hemoglobin. B) high blood levels of HDLs. C) decreased production of albumins. D) high blood levels of LDLs. E) low blood levels of LDLs.