Question

Define phototropism and geotropism hydrotropism and trophies

Answer 1

Answer:

Explanation:PHOTOTROPISM

It is movement of plant parts in response to light.Such movements are found in shoots and roots.Shoots show positive phototropism and roots show negative photropism.

GEOTROPISM:

It is movement of plant parts either towards or away from force of gravity.such movements are also found in shoots and roots.Shoots show negative geotropism

While roots show positive geotropism.

HYDROTROPISM:

It is movement of plant parts in response to water.

Answer 2

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Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism...

Gravitropism (also known as geotropism) is a coordinated process of differential growth by a plant or fungus in response to gravity pulling on it. Gravity can be either "artificial gravity" or natural gravity. It is a general feature of all higher and many lower plants as well as other organisms.

Hydrotropism is a plant's growth response in which the direction of growth is determined by a stimulus or gradient in water concentration.