In birds, unfeathered skin around the eye is the ________________________________________ ring
Fill in the blank(s) with correct word
orbital
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The pharyngeal tonsils are located
A. in the posterolateral region of the oral cavity. B. at the base of the palatoglossal arches. C. lateral to the uvula in the oropharynx. D. along the posterior margins of the tongue. E. in the posterior wall of the nasopharynx.
While most of the cells in a hair are dead, the living epithelial cells are found in
A. the cuticle of the hair shaft. B. the cortex of the hair shaft. C. the hair bulb. D. the hyponychium.
Male ejaculation occurs as powerful, rhythmic contractions appear in which of the following muscles?
A) erector spinae and ischiocavernosus B) bulbospongiosus and internal oblique C) internal oblique and erector spinae D) ischiocavernosus and internal oblique E) ischiocavernosus and bulbospongiosus
When blood starts to become too acidic, the kidneys respond by
A. synthesizing and reabsorbing H+ while filtering bicarbonate ions. B. increasing filtration rate and increasing reabsorption of H+. C. synthesizing and secreting bicarbonate ions while reabsorbing H+. D. decreasing filtration rate and increasing reabsorption of both bicarbonate ions and H+. E. synthesizing and reabsorbing bicarbonate ions while secreting H+.