the size of the tumor and how it may be impeding the functionality of the organ will also have a lot of influence on how ill your pet feels, and whether or not it will be fatal.

How would the previous sentence be correctly capitalized?
Answer: The size of the tumor and how it may be impeding the functionality of the organ will also have a lot of influence on how ill your pet feels, and whether or not it will be fatal.
up the pyramid drew about 20 to boulders, which was smeared with mud and water on logs and weighed between 1 to 15 tonnes.

How would the previous sentence be correctly capitalized?
Answer: Up the pyramid drew about 20 to boulders, which was smeared with mud and water on logs and weighed between 1 to 15 tonnes.
among the highlights of the new evening events "celebrity exklusives" count:

How would the previous sentence be correctly capitalized?
Answer: Among the highlights of the new evening events "Celebrity Exklusives" count:
but perhaps many know only images, and not the mechanism.

How would the previous sentence be correctly capitalized?
Answer: But perhaps many know only images, and not the mechanism.