it is especially ideal for individuals who suffer from a reduced sex drive or the people who are aging.

How would the previous sentence be correctly capitalized?
Answer: It is especially ideal for individuals who suffer from a reduced sex drive or the people who are aging.
for those of you who are not sure how to download the software, please follow these simple steps.

How would the previous sentence be correctly capitalized?
Answer: For those of you who are not sure how to download the software, please follow these simple steps.
if you study a preparation of elodea find that chlorophyll does not float freely in the plant but are concentrated in the cells' interior, in small lumps (called chloroplasts).

How would the previous sentence be correctly capitalized?
Answer: If you study a preparation of Elodea find that chlorophyll does not float freely in the plant but are concentrated in the cells' interior, in small lumps (called chloroplasts).
the 7. charterweek britain 2009 found in the time between 06.06.2009 to 12.06.2009 instead.

How would the previous sentence be correctly capitalized?
Answer: the 7. Charterweek Britain 2009 found in the time between 06.06.2009 to 12.06.2009 instead.