Single-celled organisms can show signs of:

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Single-celled organisms, such as amoebas, can exhibit habituation. For example, an amoeba may initially respond to a stimulus (such as a chemical) but after repeated exposure, it may stop responding as its receptors become desensitized. However, classical conditioning, instrumental conditioning, and aversive conditioning all involve more complex processes that require the ability to learn and remember associations between different stimuli or behaviors, which single-celled organisms are not capable of.

Single-Celled Organisms Can Show Signs Of