Answer:
a conditioned stimulus
Explanation:
Ivan Pavlov was a great psychologist who has discovered the theory of classical conditioning while experimenting with dogs and has given a few important terms in the theory including conditioned and unconditioned stimulus and response.
Conditioned stimulus: According to Pavlov's experiment on classical conditioning, the term conditioned stimulus is defined as a formerly neutral stimulus after getting connected with an unconditioned stimulus gives rise to a conditioned response.
In the question above, the statement signifies that the sound of the bell is a conditioned stimulus.
B is the correct answer :)!
Heuristic; its a way of learning that enables a person to learn for themselves using a practical method that is not guaranteed to be perfect but is sufficient for immediate goals.
Ancient Egyptian culture<span> flourished between c.. 5500 BCE with the rise of technology (as evidenced in the glass-work of </span>faience<span>) and 30 BCE with the death of </span>Cleopatra VII<span>, the last Ptolemaic ruler of </span>Egypt<span>. tis famous today for the great monuments, which celebrated the triumphs of the rulers and honored the gods of the land. The culture is often misunderstood as having been obsessed with death but, had this been so, it is unlikely it would have made the significant impression it did on other ancient cultures such as </span>Greece<span> and </span>Rome..
The term dust bowl is most closely associated with the major drought occurred during the 1930's. Farmers had removed millions of acres of natural grass sod to plant wheat during the previous twenty years. The soils were left exposed to the strong winds that annually sweep across the region.