Heme released from hemoglobin in aged red blood cells is decomposed in the liver into
A. iron and interleukins.
B. iron and the bile pigment bilirubin, which is eventually converted to biliverdin.
C. serum and plasma proteins.
D. iron and the bile pigment biliverdin, which is eventually converted to bilirubin.
Answer: D
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Which is not involved in the process of bone repair following a fracture?
A. Fibroblasts produce collagen fibers to connect broken pieces of bone. B. A fibrocartilaginous callus serves as a model for new bone growth. C. Osteoclasts remove excess bone from the hard callus. D. The fracture hematoma reorganizes to form a procallus. E. No exceptions; all of the choices are involved in the process of bone repair.
A group of pigs is a/an ____________
Fill in the blank(s) with correct word
The foreign or "non-self" substances that trigger immune responses are called
______. Fill in the blank(s) with correct word
LH stimulates the
a. cells that destroy the cells of Leydig. b. enlargement of the follicles. c. development of the hypothalamus. d. formation of the corpus luteum. e. water balance in the kidney.