Sam is studying the effects of temperature change on a specific enzyme, catalase. This enzyme is found in cells and helps break down hydrogen peroxide. As part of her project, she measures the rate at which hydrogen peroxide is broken down by catalase at 20, 25, 30, and 35oC Which question BEST describes Sam's science research project?

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented. b)scientists had not completely finalized their results, which took 30 years. c)cigarettes were cheaply available and media channels were very inefficient. d)cigarette manufacturers were trying hard to bring an alternative into the market

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

What is an aquifer for science class