About 23% of the carbon dioxide in the blood is attached to the ________ portion of hemoglobin.
A. carboxyl
B. globin
C. anhydrase
D. heme
Answer: B
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Onset of labor may result from
A. increased secretion of oxytocin by the fetus. B. increased glucocorticoid secretion by the mother. C. increased progesterone secretion by the placenta. D. increased estrogen secretion by the placenta. E. decreased prostaglandins.
The temporalis muscle passes through the
A) alveolar processes of the maxillae and mandible. B) tendinous band around the optic foramen. C) galea aponeurotica. D) zygomatic arch. E) fascia surrounding the submandibular salivary gland.
Reflex arcs that only use two neurons are called ____________ reflex arcs.
A. ipsilateral B. contralateral C. polysynaptic D. monosynaptic E. autonomic
When comparing gamete production in males and females, males produce
A. fewer gametes that are larger in size. B. fewer gametes that are smaller in size. C. more gametes that are smaller in size. D. more gametes that are larger in size.