Birds use vocal displays to defend their territories
Indicate whether the statement is true or false
TRUE
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An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate that medium containing microorganisms is removed is called a
A. manostat. B. culturostat. C. chemostat. D. turbidostat.
The infectious stage of chlamydiae is called a(n) ________ body.
A. oogonial B. contagious C. elementary D. reticulate
Members of the ____ flatworm lineage are vertebrate endoparasites;some, called blood flukes, cause an often deadly
disease in humans called schistosomiasis.
a. Trematoda b. Turbellaria c. Polychaeta d. Cestoda e. Hirudinea
Cell-mediated immunity in part protects against __________.
A) normal cells of the host, producing the cell-mediated immunity B) bacteria free in body fluids C) intracellular bacteria and viruses D) viruses free in body fluids E) toxins