Homeobox genes determine the overall shape of the body and the location of its parts
Indicate whether the statement is true or false
TRUE
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Which of the following is a major function of a gizzard?
A) mechanical digestion B) HCl secretion C) mucus secretion D) nutrient absorption E) enzyme secretion
Capsules of pathogenic enteric bacteria are virulence factors because they _____.
A) Capture iron from hemoglobin and store it in the bacteria B) Release hemolysins that destroy red blood cells C) Produce fimbriae that enable the bacteria to attach to human cells D) Protect the bacteria from phagocytosis and from antibodies
_____is an autoimmune disease in which T cells initiate a cell-mediated response targeting the myelin in the brain and spinal cord.
A. Epstein–Barr B. Severe combined immune deficiency (SCID) C. Multiple sclerosis (MS) D. Muscular dystrophy E. Huntington’s disease
What type of cell does Ehrlichia chaffeensis infect in humans?
A) capillary endothelial cells B) B lymphocytes C) neutrophils D) monocytes E) eosinophils