In 1928, bacteriologist Alexander Fleming was studying Staphylococcus, a type of bacteria that can cause serious infections. He grew the bacteria in small containers called
petri dishes. One day he noticed that mold had accidentally been introduced into one of
the petri dishes and was startled to see that there were no bacteria around the moldy
area. Fleming correctly deduced that the mold had had an antibacterial effect; somehow
it had prevented the bacteria from growing. Fleming identified the mold as the strain
Penicillium notatum and called its antibacterial ingredient-which he was unable to
successfully extract-penicillin. Fleming's discovery of penicillin's unique effect led to the
eventual finding that it could be used to treat infections. Several years after his initial
observation, scientists built on his work by extracting penicillin from mold and
demonstrating its effectiveness as a treatment.

Iwill give you 90 points read this entry from a blog about service dogs. lexie, an eight-month-old black labrador retriever, is sleeping quietly at my feet. i can’t but think that her soft, velvety ears and alert brown eyes would make her the perfect “doggie model” for pet magazines and pet store ads. however, lexie will soon have a much more important job to do. in a few months, she will become the loyal companion and service dog for a young man who has been blind since birth. she will him board public transportation, such as buses, subways, and trains, and she will him safely cross busy intersections. lexie will even the young man avoid obstacles, such as high curbs and low overhangs. like all dogs in our organization, lexie has undergone months of specialized training to a visually impaired person lead an active and independent life. what is the primary purpose of this blog? to inform readers about seeing-eye dogsto entertain readers with stories about lexieto persuade readers to support service dogsto convince readers to adopt seeing-eye dogs

Making an inference means filling in a text's missing information using context clues; drawing a conclusion means analyzing the story's ending. true or false? true false the inference statement is true, but the conclusion statement is false. the conclusion statement is true, but the inference statement is false.

Which headline best matches the subject and language of the article? community efforts make dc dreams come true kids' fierce determination wows at splash and dash o youth group's successful car wash funds trip to dc splash and dash car wash supports local group