Polygamy

Polygamy is a system in which either males or females' mate with more than one partner in a breeding season.

1. In polygyny

2. In polyandry

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On  the  basis  of  position

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Apical meristem

Located  at  root  and  shoot  tips and produce primary tissues are called apical meristems

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Apical meristem

Some cells ‘left behind’ from shoot apical meristem, constitute the axillary bud.

Such buds are present in the axils of leaves and are capable of forming a branch or a flower

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Shoot apical meristem

shoot apical  meristem, a dome-shaped  mass of dividing cells at the shoot tip

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Root Apical meristem

root  apical  meristem is a  thimble-like  root  cap,  which  protects  the  delicate  apical  meristem  as  the root  pushes  through  the  abrasive  soil

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Root apical meristem

root  cap  secretes  a  polysaccharide  slime  that  lubricates  the  soil  around  the  tip  of  the  root