67 million years ago in the form of phyollths (small sllica flecks in grass that make it difficult to digest)
Answer:
Permanent tissue consist of more than one time of cell and all are differeniated but meristemic tissue consist of undiffereniated cells.
Meristemic cells are simple but permanent cells are complex in nature.
Meristamic cell responsible for primary and secondary growth and permanent tissue helps in overall growth of plants
Explanation:
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:
evaporation
Explanation:
water vapor that goes up must come down
