Pacific salmon hatch in streams and grow out in the Pacific Ocean. At the end of their life, they mate once then die
Assuming that not all salmon survive life in the ocean and that those who do survive produce equal numbers of offspring, this would be an example of _______ selection.
Fill in the blank with the appropriate word.
ANS:
viability
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If oxygen is unavailable, predict what happens to the citric acid cycle
A. It stops because the supplies of NAD+ and FAD become depleted. B. It stops because ADP levels increase in the absence of oxygen. C. It continues because none of the reactions in the citric acid cycle require oxygen. D. It continues because ATP levels are low, and low ATP activates enzymes of the cycle.
Water moves (select all correct choices):
A. from regions of high water concentration to regions of low water concentration. B. from regions of low water concentration to regions of high water concentration. C. from regions of high solute concentration to regions of low solute concentration. D. from regions of low solute concentration to regions of high solute concentration. E. from regions of low water concentration to regions of low solute concentration.
Although nitrogen can act as a fertilizer initially, too much nitrogen added to a forest system can cause forest decline
Indicate whether the statement is true or false
Which mineral is especially important for women to incorporate into their diet if they are menstruating?
A. sodium B. aluminum C. magnesium D. iron