The answer is 1 – C. This region of the earth is called the mantle. This region is composed of ‘plastic’ rock. The plasticity is due to the fact that the temperatures are high enough to make the rocks liquid but they remain solid because of the high pressure in the region. The convection currents of the mantle are responsible for dragging along the continental plates of the earth’s crust, hence the tectonic movements.
People who have Type O blood can are called universal donors.
Answer:
Option A, pathogen A
Explanation:
ID50 is a way to measure the virulent efficiency of a pathogen. ID50 for a pathogen depicts the number of pathogens required to infect or cause the associated disease with in 50 percent of any population sample.
This means that 50 pathogens A can infect 50 percent of any sample population.
While 1000 pathogen B and 1000000 pathogen C are required to infect 50 percent of any sample population.
hence, Most virulent pathogen is Pathogen A
Answer:
The correct answer is option b, that is, enteroendocrine cells.
Explanation:
The specialized cells of the pancreas and the gastrointestinal tract exhibiting endocrine function are termed as enteroendocrine cells. These cells generate gastrointestinal peptides or hormones in response to a distinct kind of stimuli and discharge them into the bloodstream for the systemic effect. These are the most varied endocrine cells found within the body.
The intestinal enteroendocrine cells produce somatostatin, cholecystokinin, motilin, enteroglucagon, and neurotensin hormones. The G cells present within the intestine produce gastrin. In the gastric glands, the gastric enteroendocrine cells are present, which produce histamine, and others like cholecystokinin, alpha and gamma-endorphin, somatostatin, and others.
In the islets of Langerhans, the pancreatic enteroendocrine cells are present, which produce hormones like ghrelin, amylin, somatostatin, and pancreatic polypeptide.
