The change in the amino acid sequence illustrated in Figure 1 caused a change in the shape of Receptor X . Based on the R groups of the original and substituted amino acids, explain why Receptor X changed shape.

70 ! in 2-3 paragraphs of 250-300 words, compare and contrast parallel and relative keys. give clear definitions and specific examples to support your answer.

Read the paragraph. we didn’t enjoy our food when we went out to eat, but our friend nelson said that the restaurant normally served some of the best italian food in town. in fact, he said it was one of his favorite places to eat. he said that we should return and give it a second chance. what word best replaces “said” in the last sentence? insisted announced exclaimed shouted

17. a graduated standard used to evaluate student achievement is called a: a. rubric b. norm-referenced test c. criterion-referenced test d. multiple-choice question e. guessing penalty