The polymerase chain reaction makes DNA fingerprinting more reliable because it allows scientists to quickly make many copies of DNA the answer is C
Answer:
Medulla oblongata is responsible for autonomic regulation system.
Explanation:
Autonomic regulation is a controlling system that regulates different function of body such as heart rate,digestion,blood pressure,urination,respiratory rate,papillary response etc.
Hypothalamus is the main center of controlling this functions.
Autonomic dysfunction occur when autonomous nervous system damages,and the effect may be mild to life threatening.
Autonomic activity may leads to certain kind of side effects like-
- Dizziness,fainting
- exercise intolerance.
- sweating abnormalities.
- Diarrhea,constipation,difficulty in swallowing.
- Urinary problems,incomplete emptying of the bladder.
- Vision problems,blurry vision,vaginal dryness etc.
Answer:
Pericardial sac has protective tole
Explanation:
Pericardial sac or pericardium is a fibrous tissue that surrounds the heart. It has two coats:
- the outter coat-parietal pericardium
- the inner coat-visceral pericardium or epicardium which is double-layered and contains pericardial fluid between those two layers (pericardial fluid is necessary as a lubricant for the heart movement).
Besides lubrication, percardium also protects heart from infections, fixes it and limits its movements.
