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The responses of plants to external stimuli is called Tropism.

Here are some tropisms:

* Chemotropism, movement or growth in response to chemicals * Geotropism (or gravitropism), movement or growth in response to gravity * Heliotropism, movement or growth in response to sunlight * Hydrotropism, movement or growth in response to water * Phototropism, movement or growth in response to lights or colors of light * Thermotropism, movement or growth in response to temperature.

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Q: The responses of plants to external stimuli are called?
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Related questions

What are protective structure of makahiya?

Mimosa (makahiya) have thorns to warn the animals and people not to go near them. Plants responses are called 'tropism'. The bending of the plant towards the light is called 'phototropism'. Plants response to gravity is called 'gravitropism' or 'geotropism'. The plants response to touch is called 'thigmotropism'. the response to a source of water is called 'hydrotropism'. Plants respond to 'environmental stimuli'. Plants responses to stimuli enable them to survive. These are the protective structure of a Mimosa and other behavioral adaptation of Plants.


Change in their environment causes living things to respond to external stimuli?

Change in the environment is external stimuli and the response of life to external stimuli is adaptation or extinction.


The two main types of plant responses are tropic responses and nastic responses?

Tropic responses are called tropism. It is the growth or turning movement of plants in response to an environmental stimulus. Nastic movements are non-directional responses to stimuli, independent of the stimulus's position.


Do All plants show sensitivity to external stimuli and have the ability to move.?

Plants don't excel in locomotion, that is, the ability to move on their own. They show a sensitivity to external stimuli, such as food, by consuming it.


What is an example of external stimuli?

Sunlight. (A plants leaves always turn torwards the sun


Is flowering in plants controlled by plant hormones?

Plants produce hormones and respond to external stimuli, growing towards sources of water and light, which they need to survive.


What is autonomic movement in plants?

autonomic movment due to interal causes and paratonic movment due external caues


Plants lean to light because?

This is due to a growth hormone called auxin which has a stimuli (affinity) towards light. Thus the plant responds to the stimuli by leaning towards it.


What does internal stimuli mean in plants?

Stimuli itself is of two types - external stimuli and internal stimuli. External stimuli refers to touch, pressure, heat etc. Internal stimuli refers to the stimuli produced by body components - like hormones etc.


Defference and similarities between tropism and tactic movement?

Tropism and tactic movements are both types of responses exhibited by organisms to external stimuli, but they differ in their nature and mechanisms: Similarities: Response to Stimuli: Both tropism and tactic movements involve responses to external stimuli, which can include light, temperature, chemicals, gravity, or touch. Directed Responses: They both involve directional movements or growth in response to stimuli, aiming to optimize the organism's interaction with its environment. Differences: Nature of Response: Tropism: Tropism refers to the growth or movement of a plant or organism in response to an external stimulus. It's typically a slower, more gradual and permanent response, often involving growth towards (positive tropism) or away from (negative tropism) the stimulus. Tactic Movement: Tactic movements are rapid, often reversible movements exhibited by entire organisms or specific parts of organisms in response to a stimulus. These movements are usually immediate and aim to bring the organism closer to or move it away from the stimulus. Types of Organisms Involved: Tropism: It is commonly observed in plants, where responses such as phototropism (response to light) or gravitropism (response to gravity) can cause directional growth. Tactic Movement: This is more commonly observed in motile organisms like animals, where responses like phototaxis (movement towards light) or chemotaxis (movement towards or away from chemicals) occur. Mechanisms Involved: Tropism: Tropism involves growth responses, often due to differential growth rates or hormonal changes in specific parts of the organism in response to the stimulus. Tactic Movement: These movements involve the coordination of muscles or specialized cellular structures that enable rapid movement, such as flagella or cilia in single-celled organisms or muscle contractions in multicellular animals. In summary, while both tropism and tactic movements are responses to external stimuli, tropism involves slower, growth-based responses primarily observed in plants, whereas tactic movements are rapid, often reversible movements seen in motile organisms like animals and some single-celled organisms.


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What is one advantage of external fertilization?

Plants have a reproductive system called what?