During the initial examination of a 3.6kg(8lb) male infant delivered at term, urine is found to be leaking from the umbilicus. This infant most likely has an abnormality of which of the following fetal structures?
A. Umbilical arteries
B. Umbilical vein
C. Urachus
D. Urogenital sinus
E. Urorectal septum
Ans: C. Urachus
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The name of the process that couples the movement of hydrogen ions across the inner mitochondrial membrane to ATP production is ________.
A. the citric acid cycle B. hydrosmotic model C. chemiosmosis D. the glycolytic pathway E. Cori cycle
Which of the following helps explain why elderly people have trouble with thermoregulation?
A. Their skin has less collagen. B. The epidermis becomes thinner. C. They have fewer sweat glands. D. They have fewer sebaceous glands.
Which molecules are scientists studying to understand the nature of cell control and genetics?
A) Amino acids B) Nucleic acids C) Phospholipids D) Steroids
A or an ________________ animal eats both plant and meat food sources
Fill in the blank(s) with correct word