Most cells perform pinocytosis
Indicate whether this statement is true or false.
TRUE
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Arteries are strong, elastic vessels that carry blood to the heart.
Answer the following statement true (T) or false (F)
The first signal during helper T-lymphocyte activation involves
A. BCR of the helper T-cell binding with free antigen and engulfing it. B. CD8 of the helper T-cell binding with MHC class III of the antigen-presenting cell. C. CD4 of the helper T-cell binding with MHC class I part of the antigen fragment. D. CD4 of the helper T-cell binding with MHC class II of the antigen-presenting cell.
Which of the following connective tissue wrappings contains the entire nerve?
A) fascicle B) epineurium C) endoneurium D) perineurium E) neurilemma
Dehydroepiandrosterone is
a. the most abundant adrenal androgen b. responsible for the development and maintenance of the female sex drive c. controlled by the gonadotropic hormones d. both a and b e. none of the above