Nellie has just discovered that she is pregnant. she is a smoker and knows she should quit because nicotine is especially harmful to the fetus during the stage of development and leads to

the answer is d p: cell, q: organ, r: organ system, s: tissue

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.