You could have a sentence like:
Of the following choices, which would you prefer?
regular speech
There is no need to capitalise the word 'koala' in a sentence. Nor do you use the word 'bear', as koalas are not bears.
Only if it begins a sentence, in which case you should capitalize the C.
Your question appears to be the concluding portion of a sentence which begins "People need..."
We need to amputate the leg before the infection spreads.The surgeon begins to amputate the finger.
In formal writing you would not begin a sentence with because, therefore, the kind of sentence that begins with because is informal.
When the extra phrase begins with the word "and".
if the word after it begins in a vowel
no because then it would be a sentence fragment.
The sentence technique modeled in the eResource is called sentence variety. This involves changing the way a sentence begins in order to create interest and rhythm in writing.
No, but you need to use a capital letter to start the sentence, and the word English also begins with a capital letter.
No, "line manager" is not capitalized when used in a sentence unless it begins the sentence.