The segmentation of animals has allowed for several advantages. Indicate if the following statements concerning segmentation are true or false. A. Locomotion is more efficient in segmented animals because independent segments can move semi-independently. (Click to select) B. Partitions isolate each segment, so each must contract or expand in unison. (Click to select) C. In segmented animals like earthworms (phylum Annelida), each segment may develop a nearly complete set of adult organ systems. (Click to select) D. Redundancy in segmented animals is not an advantage. (Click to select)

Glutamic acid: hydrophilic or hydrophobic? positive, negative, or neutral? valine: hydrophilic or hydrophobic? positive, negative, or neutral?

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.

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?