Question

define geotropism. state its tow types

Answer 1

Gravitropism (also known as geotropism) is a turning or growth movement by a plant or fungus in response to gravity.Geotropism is the response to gravity in which different parts of a plant grow in opposite directions like a root grows downwards whereas the stem grows upwards.
It's two states are :
  (1) POSITIVE GEOTROPISM (growing with gravity)
  (2) NEGATIVE GEOTROPISM (growing against gravity)

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Answer 2

growth of pants or parts of plant with response to gravitational  force... ... ... ... ...

{1}shoot:- negative

{2} root:- positive