Class X

Thick wall which surrounds each spore in sporangia is called
  1. sporangium
  2. cyst
  3. gymnosperms
  4. endospores
Structures prepared by cells of ovaries where oogonia are present are called
  1. oocytes
  2. egg cells
  3. follicles
  4. calluses
First emerging structure from radicle of seed is called
  1. root
  2. shoot
  3. stems
  4. leaves
Process which undergo in secondary spermatocytes is classified as
  1. meiosis-II
  2. meiosis-I
  3. mitosis-II
  4. mitosis-I
Spores of bacteria that are formed in bacterial cells are called
  1. endospores
  2. exospores
  3. rib spores
  4. protospoers
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