It's called the proboscis
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The answer is -<span>Continuous reinforcement schedule
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Mutualism is an ecological relationship where two-member benefits (Option 2).
<h3>What is an ecological relationship?</h3>
An ecological relationship is an association between two or more species, which may have positive, negative or neutral outcomes.
Mutualism is a symbiotic ecological relationship because both species are benefited from such interaction.
In conclusion, mutualism is an ecological relationship where two-member benefits (Option 2).
Learn more about Mutualism here:
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They would be called a social psychologist.