science
Grade-4-
Easy
Question
________ is something that causes a change in an environment.
- Stimulus
- Adaptation
- Behavior
- Growth
Hint:
It can cause a physical or chemical change.
The correct answer is: Stimulus
The correct option is a)stimulus.
Stimulus is a change we can detect. It may cause a physical or chemical change in the organism. One of the examples of stimulus is our body responding to a medicine. Another example is some plants grow towards sunlight. Here, sunlight acts as the stimulus. This may cause a change in the organism or in the environment of the organism.
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