Immunity can be transferred from mother to child. When the child's immunity is acquired
A.
through the placenta, it is passive immunity, but through breastmilk it is active immunity.
B.
through the placenta or through breastmilk, it is passive immunity.
C.
through the placenta or through breastmilk, it is active immunity.
D.
through the placenta, it is active immunity, but through the breastmilk it is passive immunity.
B
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During the development of lymphocytes, some pre-T and pre-B cells survive and develop into cells capable of an immune response; this is referred to as ________ selection. However, some cells are suppressed from responding to self antigens; this is referred to as ________ selection.
A. negative; neutral B. negative; positive C. neutral; positive D. neutral; negative E. positive; negative
The closed foramen ovale becomes the ________ after birth.
A. fossa ovalis B. ligamentum arteriosum C. ligamentum venosum D. ligamentum ovale E. valves
Given the information below, calculate the tidal volume (VT). ERV = 1000 EC = 1500
A) VT = 500 B) VT = 1.5 C) VT = 1,500,000 D) VT = 2500
Which of the following statements is true?
A. Hair in the axillary region is vellus hair after puberty. B. At puberty, much of the vellus hair is replaced with terminal hair. C. Both vellus and terminal hairs are pigmented. D. In males, the hairs of the beard are vellus hairs. E. The majority of hair on the chest is vellus hair.