Class X

Plants that have lost their capacity to produce seeds, reproduce by ?
  1. vegetative propagation
  2. Fission
  3. Regeneration
  4. Spores
 A bisexual flower contains
  1. stamens only
  2. carpels onl
  3. either stamens or carpels
  4. Both stamens and carpels
Planaria reproduces asexually by :
  1. Parthenogenesis
  2. Spore formation
  3. Binary fission
  4. Budding
The process of spore formation is know as -
  1. Fragmentation ;
  2. Fission ;
  3. Budding ;
  4. Sporulation .
 The substance which accelerates the growth in stem is -
  1. Vitamin ;
  2. Enzyme ;
  3. Auxin ;
  4. Chlorophyll .
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