Mr. stein builds a model of a molecule out of wooden beads and pegs. he uses the model to explain the shape of the molecule. mr. stein uses a model because a. the real molecule doesn't actually have a shape. b. the bonds between the atoms in the real molecule are too strong. c. the model makes it more difficult to understand the molecule's shape. d. the real molecule is too small to easily observe.

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water

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.