Your answer is B, C , and D.
The answer is - Never.
40 degrees of latitude, be it on the southern or northern part of the Earth, never gets direct sunlight throughout the year. This is due to the fact that the Earth's inclination is not that big so that the sunlight can fall directly on this latitude, in fact, the inclination of the Earth allows the sunlight to fall directly on the surface only to the lines of 23.5 degrees north and south of the Equator.
Answer:
21 minutes or 0.35 hours
Explanation:
The formula for exponential population growth is
where
initial population of E.coli i.e 100
k is the rate of population growth i.e 2 as the population doubles
t is the time period i.e 20 minutes
Substituting the given values in above equation, we get -
Generation time
minutes
or 0.35 hours
In both processes sister chromatids are pulled apart, as can be seen by the image at anaphase.
There are so many examples for that in different areas, like alkyl silane experiment carried out in our lab recently.
Here's one link: http://www.alfa-chemistry.com/products/alkyl-silane-29.htm
