A parasite could determine the size of the population. Whether it grows or shrinks. It could also change genetics
Answer:
A) drive reduction
Explanation:
Motivation is the urge that fuels and directs human with the energy to accomplish a given task. Motivational theory is accustomed with the role of searching for what drives individuals to work towards a goal or a task.
The drive reduction theory explains physiological ideology required bring out an aroused tension state that motivates an organism to satisfy the need.
Instincts Theory reflects innate and fixed pattern of complex behavior in animals. For example, making holes of crabs for safety.
Optimum Arousal Theory drive people to engage in certain activities in the quest to keep up with an optimum level of physiological arousal.
Hierarchy of motives: According to Maslow's pyramid, hierarchy of motives is explained based on need to satiate or quench the least physiological needs in order to be active before subsequent level needs.
The sympathetic nervous system releases two hormones within the body in response to stress, resulting in an adrenaline rush or a sense of urgency that occurs during stressful conditions. These hormones are called epinephrine. So it releases hormones to give you adrenaline in a bad situation or stressful one