(01.01 MC)Claims about new scientific breakthroughs often appear in the media. If such a claim is made in each of the following, which media source should be considered most reliable?

(02.02 MC)In science, one example of a theory is the cell theory. If a scientist collects evidence that questions the basics of a scientific theory, this means the theory is

(02.01 MC)One of water’s unique properties is that it has strong surface tension. What do you predict would happen if water had weak surface tension?

(01.01 HC)Isabella works for an environmental safety group. Her group wants to answer the question “To what lengths must we go to protect plants and animals?” Why is her group’s research question flawed?

(01.02 MC)If a chemical reaction catalyzed by an enzyme is being carried out and there is a sudden, drastic decrease in temperature, what is most likely to happen next?

(01.01 MC)The most basic concepts of cell theory are that cells are the basic units of life and that all living things are made of cells. Which answer correctly explains why these concepts are the basis of a theory and not a hypothesis?

(01.02 MC)If a chemical reaction catalyzed by an enzyme is being carried out and there is a sudden, drastic decrease in temperature, what is most likely to happen next?

(02.02 LC)Which of the following is not part of the cell theory?

(01.01 HC) In Greek stories, Helen of Troy was portrayed as the most beautiful woman to have ever lived. Inspired by these stories, a milli-Helen scale was created to measure beauty. A scientist wants to use this scale to determine what countries have the most beautiful women. Why would this question be extremely difficult to answer scientifically?

(01.01 HC)Jamie is reviewing a new diet plan that involves purchasing pre-packaged meals and taking a patented energy supplement. In an ad explaining how it works, Jamie reads about a study cited as evidence supporting the effectiveness of the plan. In the study, two groups were followed: one following the plan and another following a simple low-carbohydrate diet. What should Jamie look for in the study to have full confidence in its scientific reliability?