Milk and other exocrine secretions contain which of the following immunoglobulins?
a. IgM
b. IgA
c. IgG
d. IgE
e. IgD
B
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Unwound strands of chromosomes visible as threads in the nucleoplasm are called ____
a. nucleotides b. chromatin c. chromatids d. centromere
The four curves of the adult spinal column are not all present at birth. Which of the following are the secondary curves, which do not appear until several months later?
A) cervical and lumbar B) thoracic and lumbar C) sacral and lumbar D) thoracic and sacral E) cervical and sacral
The cross-sectional view of the wings of birds and planes reveals a curved upper surface demonstrating both to be __________
Fill in the blank with the correct word.
Carbon dioxide is transported in the blood by:
conversion to a molecule of carbonic acid binding to a protein part of the hemoglobin molecule dissolving in plasma A, B, and C are correct none or the choices are correct