At the beginning of every new sentence or a full stop.
Yes, "Biology" should be capitalized because it is a proper noun and the name of a specific scientific discipline.
It should be capitalized when it forms part of a title or is at the beginning of a sentence.
No, it does not need to be capitalized.
No.
No they are not capitalized. When referring to school subjects, only those that are languages should be capitalized.
The German word "Tag" is capitalized when it starts a sentence or if it is a noun, but it is not typically capitalized when used in the middle of a sentence as a normal word.
No it shouldn't be capitalized.
The word angels is a common plural noun. It is not capitalized unless the first word of a sentence.
Mammogram should not be capitalized unless it's the first word in the sentence.
Biology should not be capitalized unless it's starting a sentence because it's not proper.
No they are not capitalized. When referring to school subjects, only those that are languages should be capitalized.
No, the word forecast should not be capitalized in a sentence.
No, the word basketball is not a proper noun and so it does not get capitalized in a sentence unless it is the first word of that sentence.
No it shouldn't be capitalized.
No it shouldn't be capitalized.
The word "Arctic" is capitalized.
The word angels is a common plural noun. It is not capitalized unless the first word of a sentence.
Mammogram should not be capitalized unless it's the first word in the sentence.
Example sentence - Her favorite subject in school is biology.
When it is at the start of a sentence.
No it does not have to be.