Scientists want to investigate whether the increased concentration of carbon dioxide in the ocean affects fish survival. Scientists suspect immature fish larvae may be most affected by increased carbon dioxide concentrations. Which of the following best identifies a testable hypothesis for the investigation? A)The decreasing temperature of the ocean water will increase the survivorship of fish larvae.
B) There will be a greater percentage of fish larvae that survive than mature fish that survive.
C) The increasing carbon dioxide concentrations will increase the density of adult fish skeletons.
D) The decreasing pH of the ocean water will decrease the survivorship of fish.

Like many students at university, you may be unhappy about the results you attain in exams. you may feel that even with all you are doing there must be something more -- or different-- you could be doing to get better grades. we have all at some time or other heard of that student who only studies a couple of hours for final exams and scores a's every time. we stand in awe of those who seem to breeze through without undue effort and seem to need very little in the way of studying to nail an exam. the reasons for success, in what i think are the vast majority of cases, are less esoteric than many students think: successful students consistently apply a series of productive strategies with view to attaining clearly identified learning and grade goals throughout the academic term.