A phospholipid differs structurally from a triglyceride in that it has three phosphate
groups attached to the glycerol molecule rather than three fatty acid chains.
Indicate whether the statement is true or false
FALSE
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Which of the following terms is given to the "bumps" that lie on either side of the lingual frenum?
A. Incisive papillae B. Foliate papillae C. Parotid papillae D. Sublingual caruncles E. Lingual tonsils
Which structure has an opening called the apical foramen?
a) A b) F c) G d) H e) I
__________ are chemical messengers secreted in the bloodstream and stimulate physiological responses in distant organs.
Fill in the blank(s) with the appropriate word(s).
Which of the following epithelia forms the walls of the air sacs across which gas exchange occurs in the lungs?
A) simple columnar B) simple squamous C) simple cuboidal D) pseudostratified columnar