Ms. green's biology students were studying cellular respiration. one simple organism, yeast, can be used to test the rate of fermentation using different variables. each group mixed 2 grams of yeast with warm water and placed the mixture into one of five test tubes. the variables can be seen on the graph of student data. test tube five held only yeast and warm water. the groups used the height of the carbon dioxide bubbles produced in a test tube to determine which group had the highest rate of fermentation. based on the data collected, what must be added to the yeast in the test tube in order to facilitate fermentation?

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.

Glands that the body deal with stress and respond to emergencies.

Amolecule of carbon moves through various media during the process of its cycling. in which medium will it move the fastest? a. soil b. air c. biota d. runoff water e. oceanic water