Class IX

Flowers of grass are usually
  1. Flowers of grass are usually
  2. form inflorescences
  3. form inflorescences
  4. bisexual
Sperms are nourished and activated
  1. through vas deferens
  2. through seminal vesicle
  3. through semen
  4. through prostate gland
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
regulation of blood pH
  1. elastic in nature
  2. fully permeable
  3. selectively permeable
  4. non-permeable
Hormones from pituitary gland includes
  1. testosterone
  2. oestrogen
  3. progesterone
  4. all of these
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