Answer:
The correct answer would be - "bacterial populations evolve in response to the selection pressure imposed by antibiotics".
Explanation:
The given information provided in the question about the bacterial infection supports the hypothesis that the bacterial population shows the evolution in response to the selection pressure caused by the antibiotics due to the fact that bacteria increased resistance gradually with time. This resistance towards antibiotics increased the percentage of bacterially infected children in the late 1980s and early 1990s.
In this case, the population of bacteria having resistance genes is selected to evolved selected to increase their offsprings.
The correct answer is False.
Explanation
Pedocal is the name of a class of soil that is characterized by the absence of organic matter, which is why it is located in areas of semi-arid and arid climates. Therefore, it can be stated that Pedocal is not present in humid climates, so the correct answer is False.
Answer:
Prokaryotic cells have a cell wall, Eukaryotic cells do not. Eukaryotic cells are much larger an are in fact more complex then Prokaryotic cells. Eukaryotic cells have a true nucleus bound by a doubled membrane. Prokaryotic cells have no nucleus.
Explanation:
Answer:
Explanation:A-
For Glomerular filtration rate, Increased blood volume and increased blood pressure will increase .
Constriction in the afferent arterioles going into the glomerulus and dilation of the efferent arterioles coming out of the glomerulus will decrease.
B- decreases both blood flow and filtration pressure where as constricting the efferent arteriole decreases blood flow but increases filtration pressure
The fact that both can be altered allows independent regulation of both GFR and blood flow.
Answer:
True
Explanation:
Sewage contains many substances in it like suspended solids, organic and inorganic impurities, nutrients, saprotrophic and disease causing bacteria and other microbes. Hence it is said to be a complex mixture.
