Read the following scenario and answer the question that follows. when gina was 5 years old, she was attacked by a vicious dog.
years later, every time she hears a dog bark, her heart races. this could be an example of __________. a chemical imbalance observational learning conditioning heredity
Elements can be chemically combined into compounds, therefore, a compound consists of two or more elements combined, in fixed rstios, by chemical means.
