"there is a subtle distinction between the characteristics of these two bacteria,"explained our biology teacher.

Can someone explain this to me clearly plz

It's to know your purpose before you read something because a purpose can:

If an item does not contain a fragment, write correct. if the item contains a fragment, rewrite it to make it one or more complete sentences. 1.)their faces shining with delight at seeing the movie star. 2.)i wanted one thing. to take a long nap 3.)the committee was irrupted by this application. which we received just yesterday. 4.)i enjoy working with my hands. 5.)traffic lights flashing erratically as the cars jammed in the intersection, unsure whose turn it was to proceed. 6.)the apples cooked. with their sweet juices bubbling away. 7.)just as mr. chao said goodbye. 8.)classified ads filled the pages of the newspaper. 9.)a report to write and math to do before tomorrow. 10.)the silhouettes of the trees against the light of the moon.