A jockey feeds a carrot to his horse first thing in every morning. The horse now "neighs" every morning when it sees the jockey. Neighing is a(n) response to the carrot provided by the jockey, an stimulus.

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Explanation: dorry i was slamming my head o my key board XD

A jockey feeds a carrot to his horse first thing in every morning. The horse now "neighs" every morning when it sees the jockey. Neighing is a(n) _*learned*_ response to the carrot provided by the jockey, an _*external*_ stimulus.

compost can be added to topsoil as a:

pesticide