Which step of the process shown in that figure was measured in the Biosphere 2 experiment? fourth step Consider the hypothesis that increased atmospheric concentrations of CO2 will slow the growth of coral reefs, as the series of reactions in Figure 2 suggest. If the seawater carbonate ion (CO3 2-) concentration is 270 µmol/kg, a) what is the approximate rate of calcification, and b) approximately how many days would it take 1 square meter of reef to accumulate 30 mmol of calcium carbonate (CaCO3)? 20 mmol CaCO3 per m2 per day 1.5 days If the seawater carbonate ion concentration is 250 µmol/kg, a) what is the approximate rate of calcification, and b) approximately how many days would it take 1 square meter of reef to accumulate 30 mmol of calcium carbonate? 10 mmol CaCO3 per m2 per day 3 days What happens when carbonate ion concentration in seawater decreases? The rate of calcification decreases, and it takes longer for the reef coral to grow. are attracted to each other by partial negative and positive charges on the oxygen and hydrogen atoms, respectively What is shown on the x-axis, and in what units? the carbonate ion (CO3 2-) concentration of seawater, in micromoles per kilogram of seawater What is shown on the y-axis, and in what units? the calcification rate in millimoles of calcium carbonate (CaCO3) accumulated per square meter of reef per day Which variable is the independent variable in this experiment-the variable that was manipulated by the researchers? carbonate ion concentration in the seawater Which variable is the dependent variable-the variable that responded to or depended on the treatment, and was measured by the researchers? calcification rate Based on this graph, what is the relationship between carbonate ion concentration and calcification rate? As the concentration of carbonate ions is increased, the rate of calcification increases. Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result from the fact that water molecules _.

Water has a high specific heat, meaning that a relatively large amount of heat must be added or removed in order to get the temperature of the water to change significantly. This useful quality is based on water's _.

Because organisms are made primarily of water, they resist rapid temperature changes.

Drops in the bucket homework