Ruben wants to determine if listening to different types of music will affect a person's pulse. His hypothesis states that if people listen to music, their pulse will increase more than if they listen to other types of sound, such as white noise. Ruben tests his mother, sister, and cousin. He takes each participant's pulse before, during, and after listening to 30 minutes of music, and then repeats the process with 30 minutes of white noise. From the data collected, he concludes that music raises a person's pulse the most. Which characteristic of science is missing from this experiment?
A. The question is not testable because a person's pulse is affected by other factors.
B. The phenomenon is not observable because a person's pulse is not measurable.
C. The experiment is not replicable because the testing conditions are not included.
D. The results are unreliable because the testing sample of the experiment is too small.

The production of cells during mitosis into specialized function is recombination or differentiation

Where does all the water go? according to the environmental protection agency (epa), in a typical wetland environment, 39% of the water is outflow; 46% is seepage; 7% evaporates; and 8% remains as water volume in the ecosystem (reference: united states environmental protection agency case studies report 832-r-93-005). chloride compounds as residuals from residential areas are a problem for wetlands. suppose that in a particular wetland environment the following concentrations (mg/l) of chloride compounds were found: outflow, 60.4; seepage, 73.7; remaining due to evaporation, 26.4; in the water volume, 46.8. (a) compute the weighted average of chlorine compound concentration (mg/l) for this ecological system. (round your answer to one decimal place.) mg/l (b) suppose the epa has established an average chlorine compound concentration target of no more than 58 mg/l. does this wetlands system meet the target standard for chlorine compound concentration? yes. the average chlorine compound concentration (mg/l) is too high. yes. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is too high.

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false