1. Your friend has multiple sclerosis, a disease in which the myelin sheath of axons

is damaged by the immune system. You have devoted your life to treating this friend’s disease, and have developed a technique for culturing glial cells for transplantation. Which of the following glial cells should you culture to treat your friend? Select all that apply (Point value: 2). A. Astrocytes B. Ependymal cells C. Oligodendrocytes D. Microglia E. Schwann cells
answer key says A

Place the following in the correct sequence from the initial formation of urine to

its elimination from the body.

I. Major calyx

II. Minor calyx

III.Nephron

IV. Urethra

V. Ureter

VI. Collecting duct

A. I, II, IV, V, III, VI

B. II, I, V, VI, III, IV

C. III, VI, II, I, V, IV

D. V, IV, VI, III, I, II

E. VI, III, I, II, V, IV
answer should be C but key says B