Answer:
The correct option is: a. Learned helplessness
Explanation:
Learned helplessness is a state of mind characterized by a perceived<u> lack of control over the events or situations.</u> A person subjected to repetitive adverse events or situations develops a sense of powerlessness and thus is unwilling to avoid subsequent encounters.
According to this theory, depression and other related mental conditions, can be a result of the <u>perceived or real lack of control over the outcomes of the events or situations.</u>
Answer:
by changing heart rate and stroke volume
Explanation:
Factors affect cardiac output by changing heart rate and stroke volume. Primary factors include blood volume reflexes, autonomic innervation, and hormones. Secondary factors include extracellular fluid ion concentration, body temperature, emotions.
The answer is
A. The heart is a muscular pump that acts to circulate blood to deliver oxygen all over the body.
C. Excretion
Excretion is part of the excretory and really has nothing to do with the respitory system which deals with gas exchange.
