Answer:
Lower esophageal sphincter
Explanation:
The biological valves are the muscular structures composed of the smooth muscles which form thick tubular structure to allow the controlled movement of any material through it. The valves in the digestive system are known as the sphincters.
The sphincters control the unidirectional movement of the eaten food, chyme and the bolus in the digestive tract.
A sphincter is present at the lower portion of the oesophagus (food pipe) which contracts to prevent the backflow of the food from the stomach and since the sphincter is present at the lower side of the oesophagus, therefore, is known as the lower esophagal sphincter.
Thus, Lower esophageal sphincter is correct.
Answer:
Option D, West Nile virus fever/encephalitis
Explanation:
A re-emerging disease is one which after a long span of time has re-emerged again as the microbes causing such diseases have become resistant to the existing drugs.
Here tuberculosis , malaria and gonorrhea are the re-emerging disease as the microbes causing these diseases have become resistant to the available drugs and thus there is a need to produce medicines that could fight with the re-emerged multi drug resistant tuberculosis , Malaria and gonorrhea
Hence, option D is correct.
Answer:
<h2>
Answer</h2>
The nuclear envelope disappear
Answer:
You just gotta light up light up sketchers
Explanation:
Answer:
C: 35
Explanation:
if DNA molecule contains 15% adenine then C and G will constitute 70%,of which guanine will be 35%
