Answer ONE of the four following essay questions. a- List th…

Answer ONE of the four following essay questions. a- List the FOUR types of regeneration (2 points). Identify a main characteristic for each of the four types (3 points). b- Explain the main differences between primary and secondary neurulation. c- Define the concept of system biology for developmental biology (2 points). Describe its importance to the field (3 points). d- Explain the differences between a paracrine, autocrine, endocrine and juxtacrine factor (5 points). 

Answer a total 5 short answer questions. You may select any…

Answer a total 5 short answer questions. You may select any number of questions presented in Set 1 (question 57) and Set 2 (question 58) to total 5 responses (e.g. you may answer 5 questions from Set 1 and 0 from Set 2; you may answer 2 questions from Set 1 and 3 questions from Set 2, etc.). Make sure to indicate the question you are answering by number (SA#). Do not answer more than 5 questions total as only the first 5 will be graded. This section is worth 5pts total; 1pt per question.