A) Using your knowledge of how myelination impacts/contributes to the central nervous system, describe what is going on with neurons and the role they play in Multiple Sclerosis (an autoimmune disease where the immune system attacks & destroys myelin) B) A group of scientists are attempting to design a model for Multiple Sclerosis in zebrafish. Sadly, genetic orthologs (genes in different species that evolved from a common ancestral gene by speciation) to Homo sapien Multiple Sclerosis-affiliated genes are unidentifiable in zbrafish. Design &explain, & describe the broad experimental strategy characteristics to make a genetic model for Multiple Sclerosis in the zbrafish & incorporate traits one would utilize in the screening procedure.

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.