He used his etiquette in a good way because he knew that they new boy did not understand how the rules and procedures worked.
Answer:
Thousands of years back people were mostly hunters and gatherers. Thus, they used to eat raw meat and vegetable since they didn't know anything about cooking raw food in fire. After discovering about cooking raw meat and vegetables in fire is when new dishes and inventions came about.
Answer: b. Chlamydophila pneumoniae
Explanation:
Chlamydophila pneumoniae is a species of Chlamydia. It is an obligate bacterium. It infects the humans and is responsible for the cause of disease pneumonia. This bacteria is undetected by gram staining. It is associated with the cause of symptoms like fever and shivering. It gives positive results for the cold agglutination test.
Systemic.....................................................................
