Neoprene sleeves, shoe inserts, ankle braces, and helmets are all considered which of the following?

Which portion of the sperm cell contains enzymes essential for fertilization?

A) Acrosomal cap B) Tail C) Neck D) Golgi apparatus

Which of the following sounds may be heard in lower respiratory obstruction?

A) Crowing B) Wheezing C) Stridor D) Snoring