I NeEd HeLp PlEaSe
After an initial infection, B-cells recognize
the measles virus. How is this helpful in human immune response?
A)The B-cells transfer this recognition to T-
cells, which will then devour the viruses.
B)The B-cells use this recognition to defend the
body against other pathogens, such as
bacteria.
C)The B-cells produce antibodies more quickly
if the measles virus is encountered again.
D)The B-cells more quickly recognize and
respond to any other virus that invades the
body

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?

Mr. j, age 42, is a construction worker in las vegas. he recently noticed that a mole on his face seemed to be getting larger and darker. at first he did not worry because he was in the sun a lot and assumed the change may have been caused by sunburn. after a month, not only was the mole larger and darker, but it appeared to be “bumpy.” his doctor diagnosed a malignant melanoma skin cancer following biopsy of the nevus. mr. j reports pain in his right shin that does not go away when he puts his feet up or sleeps. discussion questions 1. relate mr. j’s skin changes to the warning signs for malignant melanoma. (see malignant melanoma.) 2. discuss the normal progression of this malignancy. what is the significance of the bone pain that mr. j is experiencing? (see malignant melanoma.) 3. discuss the treatment available for this patient and the prognosis for recovery. (see malignant melanoma.)

Describe the trends in electron configuration in the periodic table by selecting the terms from the drop down menus