Can you identify the major theme illustrated by each of the following examples? If necessary, you may review the themes in Chapter 1 of your book. Match the themes on the left with the examples on the right. Not all themes will be used. ResetHelp T cell activation requires specific types of communication. Antigen receptors on T cells only recognize fragments of antigens, and the fragments must be displayed, or presented, on the surface of body cells by special proteins before T cells are activated. A T cell bearing a receptor that matches this antigen fragment binds to both the antigen and self-protein. This three-part interaction among a self-protein, an antigen fragment, and an antigen receptor is required for a T cell to function.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.