photosynthesis
The mimosa plant responds to touch by rapidly closing its leaves when touched, a behavior known as thigmonasty.
A plant that opens and closes in response to its environment does so through a process called tropism. This is when the plant's cells respond to external stimuli, such as light or touch, by changing their shape or orientation. For example, the opening and closing of a plant's leaves in response to light is known as phototropism. This allows the plant to optimize its exposure to sunlight for photosynthesis.
The plant you are referring to is likely the sensitive plant, also known as Mimosa pudica. It responds to touch by folding its leaves inwards, a response known as thigmonasty.
It is a tropism, specifically phototropism.
brown(no sunlight=dead plant)
thigmotropism
A plant that responds to touch is exhibiting thigmotropism. Thigmotropism is a response where a plant changes its growth pattern in response to touch or contact with a solid object.
An organism that uses sunlight to make food or energy is known as a producer. An example of a producer is a plant. The plant utilizes the sunlight as energy to produce food.
Thermotropism is when a plant 'moves' as it responds to heat
it wear coats
how much sunlight does a plant need
it responds by eating the other flowers around it to get as much sunlight as it needs