A hiker is climbing up a steep path. Halfway up, he finds the muscles in his legs are experiencing a burning and aching sensation. What is the most likely
cause of these symptoms?

A. He has a large buildup of lactate in his muscles.
B. The Krebs cycle is producing too much waste.
C. He has eaten too much sugar.
D. The sun was overheating his muscles.

What re the two main phrases of the cell cycle.

Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons

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.