Which of the following is NOT a characteristic of B cells?
A) They originate in bone marrow.
B) They have antibodies on their surfaces.
C) They are responsible for the memory response.
D) They are responsible for antibody formation.
E) They recognize antigens associated with MHC I.
E
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Chapter 16 mentioned that less than 3 percent of the water on Earth is freshwater. There are
organisms that have adjusted to the salinity of the oceans, but humans are not among them. Therefore, scientists are working on various desalination procedures—methods of removing the salt from ocean water. These desalination procedures are quite expensive and require advanced technology. Aside from the cost, what do you see as other potential drawbacks of performing desalination on a large scale?
What will be an ideal response?Four of the five substances listed below are or
contain saturated fats. Select the exception. a. butter b. bacon grease c. oleic acid d. animal fat e. whole milk
Went's experiment in 1926 with oat coleoptiles showed that agar that absorbed auxin from the tips would cause a tipless shoot to curve away from the side where he had placed the agar, suggesting that auxin causes cells to elongate.
Answer the following statement true (T) or false (F)
The paramedic is in the BEST position to formulate an appropriate treatment plan for an ill patient if the paramedic:
A) is able to identify the etiology of the patient's illness. B) obtains a complete list of all the patient's medications. C) performs a head-to-toe exam to detect all abnormalities. D) gathers a reliable medical history from the patient's family.