Class IX

Internal environment of an animal refers to the
  1. Internal environment of an animal refers to the
  2. blood
  3. body fluids
  4. all of these
Flowers of grass are usually
  1. Flowers of grass are usually
  2. form inflorescences
  3. form inflorescences
  4. bisexual
Seldom fatal disease is known as
  1. malignant
  2. benign
  3. tertian malaria
  4. anemia
Immunization refers to
  1. engulfing toxins by phagocytes
  2. producing more phagocytes
  3. maintain a level of antibodies to confer immunity
  4. is a severe medical condition
If a substance accumulates in a body for a long time, it will be
  1. passed out through egestion
  2. passed out through excretion
  3. passed out through excretion
  4. passed on to next consumer in food chain
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