Which of the following infections would not respond to antibiotic treatment?
Gonorrhoea
Measles
Diarrhoea
Tuberculosis
Correct answer is B
Measles is an infectious illness caused by the rubeola virus. It spreads either through direct contact with a person who has the virus or through droplets in the air. Measles is a highly contagious disease that can lead to life-threatening complications.
The others are caused by Bacteria which can be treated with antibiotics.
A population which exceeds its carrying capacity and then collapses is represented graphically as a?
bell shaped curve
skewed curve
s-shaped curve
linear curve
Correct answer is C
S-shaped growth curve(sigmoid growth curve): A pattern of growth in which, in a new environment, the population density of an organism increases slowly initially, in a positive acceleration phase, then increases rapidly, approaching an exponential growth rate but then declines in a negative acceleration phase until at zero growth rate the population stabilizes.
The order of primary succession by plants in a very dry habitat is?
xerophytes → mesophytes → shrub
mesophytes → xerophytes → shrub
mesophytes → shrub -> xerophytes
xerophytes → shrub → mesophytes
Correct answer is C
No explanation has been provided for this answer.
The effect of chlorofluorocarbon is
reducing oxygen concentration in the atmosphere
depleting the ozone layer
screening ultra violet rays
increase in carbon dioxide concentration
Correct answer is B
No explanation has been provided for this answer.
The major pollutant around airport residential areas is
oil spillage
soot
noise
dust
Correct answer is C
No explanation has been provided for this answer.