Answer:
Southern farmers could not keep up with demands for cotton.
Explanation:
Southern farmers could not keep up with demands for cotton so they improvised by using tobacco instead.
Limited ability . means there is upto limit
a restriction
Answer:
B. The higher up a mountain you go, the colder it tends to get (and in my experience, the drier too, but I don't want to assume that's always the case), therefore the number of plants that can survive tends to decrease.
Answer: OPERANT: RESPONDENT.
Explanation: Operant behavior operates on the environment,
Respondent behavior occurs as an automatic response to some stimulus.
Operant behavior can be defined as a way of conduct through positive and negative reinforcement and positive and negative punishment. This occurs as a result of Response to circumstances surrounding an individual.
Respondent behavior can be defined as a conduct that occurs as a result of an answer or reply to some stimuli.