A bond between a phosphate group and a sugar can be found linking together
A) two simple sugars.
B) one amino acid to an amino group of another.
C) two nucleotides.
D) a fatty acid and a glycerol molecule.
E) a cholesterol molecule and a fatty-acid molecule.
C) two nucleotides.
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The outer covering of the crown of a tooth consists of which substance?
A. Cementum B. Enamel C. Dentin D. Pulp
Suppose that epiphyseal lines appear in a 10-year-old's long bones. Which of the following statements is, therefore, true?
A) The epiphyseal plates have ossified and further growth in length is not possible. B) Administration of growth hormone will stimulate future bone growth in length. C) Osteoclasts will dissolve the metaphysis so length growth can continue until adulthood. D) More growth will occur during the teenage years as sex hormones stimulate rebuilding of growth plates. E) Intramembranous ossification will enable further growth in length.
The sacroiliac joint is a joint between the ________ and the ________.
A. ilium; sacrum B. sacrum; coccyx C. acetabulum; femur D. ilium; ischium
The reddish color of the skin of the lips is primarily due to the presence of which pigment?
A) Hemoglobin B) Carotene C) Myoglobin D) Keratin E) Melanin