Chlamydia, if left untreated:
a: cannot cause any more severe damage to the infected person.
b: will go away on its own.
c: can only be transmitted through the blood.
d: can be passed to any and all sexual partners.

The lower respiratory system includes the a. lungs. b. esophogus. c. larynx. d. pharynx

The best way to get vitamins and minerals is to  a.  eat more fruits than vegetables.    b.  drink as much fruit juice as possible.    c.  take vitamin supplements.    d.  eat a balanced diet.

Although animals share many common characteristics, there is also a great amount of diversity found in animals. which animals are ectothermic, obtain dissolved oxygen in water through gills, have scales, have fins, and live in water?