Answer:
tissue is a group of cells that have a similar function.
Answer:
the Federal Reserve System takes in the two-dimensional shape of triangle with a large base that comes to a peak.
Answer:
According to Nutton, we are unable to identify any diseases familiar to us today because we are hampered by the great difference between ancient and modern understanding of the concept of 'a disease'.
The evidence or claim he makes to support this, is in his book "Seeds of Disease" where he states that during the ancient medicine practice, the interpretatation was not held nor rigorously or strict, employing words far looser metaphoric sense, interchangeably with what they had known from Galen instead.
Explanation:
Professor Vivian Nutton specialises in the history of the classical tradition in medicine, from Antiquity to the present, and particularly on Galen. He is currently co-editor of Medical History. Heirs of Hippocrates
, how they exercised their influence, and how they were received and interpreted over the centuries, are fascinating stories. It was taken over and translated into Latin, Arabic, Hebrew and a range of European languages.
His main work has focused around Galen of Pergamum (129–216/7 AD), the most prolific writer to survive from the ancient world, whose combination of great learning and practical skill imposed his ideas on learned doctors for centuries, and, secondly, on the development of medical ideas and practices in the Renaissance of the sixteenth century.
Answer:
Correct option is C.
Explanation:
Gram staining is a technique of separation of the bacteria based on the cell wall composition. Steps involved in gram staining are:
1) Primary stain application which is known as crystal voilet, it stains all cells purple/blue.
2) Mordant stain application which is known as iodine solution, is added, and form crystal iodine complex, all cells continue to stain blue/purple.
3) Decoloration step, in this step, we can differentiate gram negative or gram positive bacteria. So, decolorizing agent such as ethanol or acetone extracts blue color from thin walled peptidoglycan layer gram negative bacteria, and gram positive bacteria remain blue/purple because it contains thick walled peptidoglycan layer.
4) Counterstain application in this step safranin red dye stain the gram negative decolorized cells red/pink, and gram positive bacteria remain same blue.
So, if a student is performing a Gram stain of a mixed culture of both E. coli and S. aureus, and he forgets to decolorize with ethanol Both the bacteria should appear blue/purple color.
