Class XI

Ultrafiltration retains
  1. proteins
  2. platelets
  3. water
  4. both A and B
Mammals do not produce
  1. salivary amylase
  2. catalase
  3. pancreatic amylase
  4. Cellulose
Central heating systems can be run through
  1. More deforestation
  2. Burning of garbage
  3. Lesser incinerators
  4. Cooling water pipelines
 From root hair cells, water travels through the
  1. Pith cells
  2. Epidermis
  3. Cuticle
  4. Cortex
 Process of using natural bacteria in mining industry is known as
  1. Biodegradation
  2. Biogenomics
  3. Bioremediation
  4. Bioleaching
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