Class IX

After receptors sense stimulus,
  1. a negative feedback is generated
  2. a self imposed sweating is produced
  3. self-corrective mechanism is launched
  4. all of these
Groups of different tissues working together are called as
  1. genre
  2. origin
  3. organ
  4. system
Chronic Obstructive lung disease occurs due to
  1. Chronic Obstructive lung disease occurs due to
  2. depressant drugs
  3. amphetamines
  4. cocaine
While cutting big molecules to smaller molecules, enzymes may be called as
  1. molecular knife
  2. molecular lancet
  3. molecular fork
  4. molecular scissors
Tactile means ability to
  1. touch
  2. taste
  3. tackle
  4. treat
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