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2000420go
Answered

Which stimulus is an example of an internal stimulus?

A. an artificial light that attracts insects


B. an increase in the amount of water available to a plant


C. a decrease in oxygen levels in the blood during exercise


D. a sudden change of air temperature

Answer :

Mspeciesgo

An example of an external stimulus is a decrease in oxygen levels in the blood during exercise.

Option C

What is stimulus?

A stimulus is defined as a thing or sensation that causes a specific reaction in an organ or tissue of a living organism

There are two types of stimuli:

  • Internal stimulus
  • External stimulus

Learn more about stimulus:

https://brainly.com/question/20117556

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