B and T cells that are no longer needed undergo ____________________ to ensure that a specific immune response is self-limiting
Fill in the blank(s) with correct word
apoptosis
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All of the following are true of emission and ejaculation, except they
A) occur under sympathetic stimulation. B) begin with peristaltic contractions of the ampulla. C) are responsible for propelling semen toward the external urethral opening. D) involve contractions of the seminal glands. E) stimulate the release of urine from bladder to clean the urethra.
Most activated B-lymphocytes differentiate into
A. memory helper T-lymphocytes. B. macrophages. C. plasma cells. D. antigen-presenting cells.
Cholesterol is absorbed without being digested into smaller pieces. How does this compare to absorption of carbohydrates and proteins? What characteristic of cholesterol suggests it would be transported by simple diffusion? What is the evidence that transport proteins are involved in cholesterol absorption? Does this discovery rule out transport by simple diffusion? Explain.
What will be an ideal response?
List four reasons to do a flank laparotomy
What will be an ideal response?