If photos means more than one photo, then there is no apostrophe. "Of the photo" is written as photo's. "Of the photos" is written as photos'.
It is if you are referring to a posession of more than one passport, as in "Their passports' photos showed them all with the same strange looks on their faces."
No. A spider is a spider and an apostrophe is an apostrophe.
you've is the apostrophe of you have
No, your doesn't have an apostrophe. You're, however, does have an apostrophe because it's a contraction for you and are.
The sign for an apostrophe is '. It is used to indicate possession or contraction in written language.
This is an apostrophe.( ' )
there is no apostrophe
you dont use an apostrophe in will not
No, taste doesn't have an apostrophe.
An apostrophe is not required.
Can't is cannot with an apostrophe.
Shall not with an apostrophe is shan't.