Sperm remain viable in the female reproductive tract for about 1 to 2 days.

LDLs are bad because they carry most of the cholesterol (________ percent) into the bloodstream

a. 30 to 40 b. 40 to 50 c. 50 to 60 d. 60 to 70

A 22-year-old woman has "spontaneous" loss of teeth nos. 28, 29, and 30 . She has no periodon-tal pockets associated with the remainder of her teeth. Panoramic radiograph shows a sharply defined radiolucency in the area of tooth loss as well as another lucency in the body of her left mandible. She may have which of the following?

a. Cherubism b. Cleidocranial dysplasia c. Paget's disease d. Hyperthyroidism e. Langerhans cell disease