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Classical conditioning or Pavlovian or respondent conditioning for learning new stimulus
Classical conditioning or Pavlovian or respondent conditioning for learning new stimulus
Business infographics, business situations. Business angel. Man and woman angels with wings flying to the rescue. Investor, sponsor finances new projects. Vector illustration of flat design. Project, contract, diagram, and graphic elements.
Happy men and women cleaning up city street. Group of young ecologists, volunteers or eco activists picking up and disposing garbage in park. Community service work. Flat cartoon vector illustration.
Help, support, first aid in difficult situation set. Kind people giving plate of food to beggar, holding bag of grandmother to carry, help fallen person up, comfort friend cartoon vector illustration