Cerebral cortex
1. Emotion can invoke an autonomic response.
2. Sexual thoughts or image which can increase blood flow to the genitals.
Hypothalamus.
1. It activates the flight or fight response.
2. It is the major control of ANS.
3. It is the integrating center for thermoregulation.
Brainstem.
1. It is integrating centers for reflexes which control heart rate and blood pressure.
2. It is the integrating center for pupillary reflex
Spinal cord
1. It is the integrating center for urination, erection, defecation and ejaculation reflexes.
Answer:
Reproduction is important for the survival of all living things. Without a mechanism for reproduction, life would come to an end.
Explanation:
Reproduction is a characteristic of all living systems; because no individual organism lives forever, reproduction is essential to the continuation of every species.